1 00:00:02,970 --> 00:00:10,411 {\an7}♪ 2 00:00:10,444 --> 00:00:13,113 {\an7}Narrator: ELECTRICITY. 3 00:00:13,146 --> 00:00:17,684 {\an7}WE’VE HAD IT FOR 100 YEARS. 4 00:00:17,718 --> 00:00:20,888 {\an7}THESE GUYS HAVE BEEN USING IT \h\h\h\h\h\hFOR 200 MILLION. 5 00:00:20,921 --> 00:00:25,192 {\an7}[CLICKING] 6 00:00:25,225 --> 00:00:28,895 {\an7}THIS IS THE AMAZON’S \h\hFINAL FRONTIER-- 7 00:00:28,929 --> 00:00:30,631 {\an7}A LOST WORLD, 8 00:00:30,664 --> 00:00:34,601 {\an7}WHERE CREATURES HAVE EVOLVED \h\h\h\h\hAN ELECTRIC SENSE. 9 00:00:34,635 --> 00:00:37,838 {\an7}NOW AN INTREPID SCIENTIST \h\h\h\h\h\hRISKS IT ALL 10 00:00:37,871 --> 00:00:42,008 {\an7}TO EXPLORE THIS ALIEN WORLD \h\h\h\h\hOF ELECTRIC FISH. 11 00:00:42,042 --> 00:00:43,243 {\an7}Man: AH! 12 00:00:43,277 --> 00:00:45,513 {\an7}AY! HE SHOCKED ME. 13 00:00:45,546 --> 00:00:52,520 {\an7}[BUZZING] 14 00:00:57,391 --> 00:00:59,059 {\an7}Narrator: THE AMAZON, 15 00:00:59,092 --> 00:01:02,562 {\an7}ONE OF THE LEAST EXPLORED \h\hPLACES ON THE PLANET. 16 00:01:06,934 --> 00:01:10,571 {\an7}\h\h\h\h\h\hIT’S BIGGER THAN WE CAN COMPREHEND. 17 00:01:16,209 --> 00:01:19,279 {\an7}BUT WHAT YOU SEE IS ONLY \h\h\hPART OF THE STORY. 18 00:01:19,313 --> 00:01:27,655 {\an7}♪ 19 00:01:27,688 --> 00:01:33,594 {\an7}\h\h\h\h\hTHE REAL ACTION LIES BELOW THE SURFACE... 20 00:01:33,627 --> 00:01:36,130 {\an7}A WORLD FEW HAVE EVER SEEN... 21 00:01:36,163 --> 00:01:41,669 {\an7}♪ 22 00:01:41,702 --> 00:01:45,839 {\an7}\h\h\h\h\hWHERE CREATURES RULE WITH A MYSTERIOUS SIXTH SENSE. 23 00:01:48,475 --> 00:01:51,979 {\an7}FISH WITH TECHNOLOGICAL POWERS, 24 00:01:52,012 --> 00:01:53,780 {\an7}THEY OPERATE IN A BATTLEFIELD 25 00:01:53,814 --> 00:01:56,884 {\an7}\h\hMORE COMPLICATED THAN WE CAN IMAGINE. 26 00:01:56,917 --> 00:02:03,891 {\an7}♪ 27 00:02:03,924 --> 00:02:06,593 {\an7}[BIRD SQUAWKING] 28 00:02:06,627 --> 00:02:07,962 {\an7}FOR CENTURIES, 29 00:02:07,995 --> 00:02:11,265 {\an7}THE AMAZON RIVER HAS LURED EXPLORERS FROM FAR AND WIDE 30 00:02:11,298 --> 00:02:15,803 {\an7}SEEKING TO DEMYSTIFY ITS DEPTHS. 31 00:02:15,836 --> 00:02:18,172 {\an7}FOR FISH BIOLOGIST \h\hWILL CRAMPTON, 32 00:02:18,205 --> 00:02:20,774 {\an7}IT’S A TREASURE TROVE \h\h\h\hOF DISCOVERY 33 00:02:20,807 --> 00:02:24,144 {\an7}JUST WAITING TO BE UNLOCKED. 34 00:02:24,177 --> 00:02:28,181 {\an7}HE’S SPENT THE LAST 20 YEARS \h\h\hSTUDYING ELECTRIC FISH 35 00:02:28,215 --> 00:02:31,385 {\an7}AND HAS FOUND MORE THAN \h50 NEW SPECIES HERE. 36 00:02:35,522 --> 00:02:40,193 {\an7}\h\hTHE AMAZON BASIN IS HOME TO MORE THAN 5,000 SPECIES OF FISH. 37 00:02:42,195 --> 00:02:45,365 {\an7}BUT IT’S THE ELECTRIC ONES \h\h\h\h\h\hTHAT DOMINATE. 38 00:02:47,267 --> 00:02:51,538 {\an7}\h\h\h\hTHE ENTIRE RIVER PULSES WITH THEIR ENERGY. 39 00:02:51,571 --> 00:02:54,908 {\an7}\hIT’S A PERFECT PLACE FOR A FISH RESEARCHER. 40 00:02:54,941 --> 00:02:57,811 {\an7}\hWill Crampton: EVERY TIME I PUT A NET INTO THE WATER 41 00:02:57,844 --> 00:02:59,746 {\an7}I HAVE MY FINGERS CROSSED 42 00:02:59,780 --> 00:03:02,182 {\an7}\hTHAT SOMETHING NEW IS GOING TO COME UP, 43 00:03:02,215 --> 00:03:03,817 {\an7}AND THAT’S, THAT’S, UH, 44 00:03:03,850 --> 00:03:07,887 {\an7}\h\hSOMETHING THAT JUST REALLY KEEPS ME GOING. 45 00:03:07,921 --> 00:03:09,489 {\an7}\h\h\h\h\h\h\h\h\h\hNarrator: DESPITE THE NUMBER OF SPECIES 46 00:03:09,523 --> 00:03:11,258 {\an7}WILL HAS DISCOVERED, 47 00:03:11,291 --> 00:03:12,859 {\an7}HE WANTS TO DELVE DEEPER 48 00:03:12,893 --> 00:03:16,163 {\an7}INTO THE STRATEGY BEHIND \hTHEIR ELECTRIC WARFARE. 49 00:03:17,931 --> 00:03:19,366 {\an7}HE’S GOT JUST THREE WEEKS 50 00:03:19,399 --> 00:03:21,868 {\an7}\h\h\h\h\hTO FIND AS MANY ELECTRIC FISH AS HE CAN, 51 00:03:21,902 --> 00:03:24,171 {\an7}INCLUDING THE BIGGEST OF ALL, 52 00:03:24,204 --> 00:03:28,975 {\an7}THE ELECTRIC EEL. 53 00:03:29,009 --> 00:03:31,311 {\an7}BUT IT WON’T BE EASY. 54 00:03:31,344 --> 00:03:35,415 {\an7}THE AMAZON RIVER SPANS SIX MILES AT ITS WIDEST 55 00:03:35,449 --> 00:03:38,585 {\an7}AND PLUNGES 300 FEET \h\h\hAT ITS DEEPEST. 56 00:03:38,618 --> 00:03:43,456 {\an7}♪ 57 00:03:43,490 --> 00:03:45,092 {\an7}MUD CLOUDS THE WATER, 58 00:03:45,125 --> 00:03:48,095 {\an7}\h\hSTOPPING THE SUNLIGHT FROM REACHING THE BOTTOM. 59 00:03:48,128 --> 00:03:51,098 {\an7}\h\h\h\h\hAS A RESULT OF THESE EXTREME CONDITIONS, 60 00:03:51,131 --> 00:03:53,567 {\an7}THE FISH HAVE EVOLVED \hSPECIAL ADAPTATIONS 61 00:03:53,600 --> 00:03:55,769 {\an7}\h\h\hTHAT ALLOW THEM TO LIVE IN THE DARK. 62 00:03:55,802 --> 00:03:58,405 {\an7}Will: THE WORLD OF THE AMAZON \h\h\h\h\h\h\hDURING THE DAY 63 00:03:58,438 --> 00:04:02,208 {\an7}IS A WORLD OF COLOR AND LIGHT. 64 00:04:02,242 --> 00:04:04,077 {\an7}BUT AS THE SUN SETS \hAND IT GETS DARK, 65 00:04:04,111 --> 00:04:06,580 {\an7}ANOTHER WORLD WAKES UP, 66 00:04:06,613 --> 00:04:09,416 {\an7}AND THAT’S THE ELECTRIC WORLD. 67 00:04:18,725 --> 00:04:23,363 {\an7}[CLICKING] 68 00:04:23,396 --> 00:04:27,767 {\an7}\h\h\h\h\h\h\h\h\h\hNarrator: ALIEN-LIKE CREATURES EMERGE, 69 00:04:27,801 --> 00:04:31,405 {\an7}\h\h\hEACH WITH ITS OWN UNIQUE ELECTRIC SIGNAL. 70 00:04:34,107 --> 00:04:38,845 {\an7}SAND-BURROWING GLASS KNIFEFISH RISE FROM THE DEPTHS. 71 00:04:38,879 --> 00:04:42,282 {\an7}[BUZZING] 72 00:04:42,315 --> 00:04:46,920 {\an7}[CLICKING] 73 00:04:46,953 --> 00:04:49,255 {\an7}THE TAMANDUA GHOST KNIFEFISH. 74 00:04:49,289 --> 00:04:51,691 {\an7}ITS NAME MEANS ANTEATER. 75 00:04:51,725 --> 00:04:54,228 {\an7}A FISH WITH SEE-THROUGH SKIN 76 00:04:54,261 --> 00:04:56,530 {\an7}AND A POINTED HEAD. 77 00:04:56,563 --> 00:05:01,735 {\an7}\h\h\h\h\h\h\hITS TINY EYES ARE VIRTUALLY FUNCTIONLESS. 78 00:05:01,768 --> 00:05:05,805 {\an7}\h\hELEPHANT-NOSED KNIFEFISH WITH SPECIALIZED MOUTHPARTS. 79 00:05:05,839 --> 00:05:09,609 {\an7}EVOLUTION AT ITS MOST CREATIVE. 80 00:05:09,643 --> 00:05:11,011 {\an7}THERE ARE EVEN ELECTRIC FISH 81 00:05:11,044 --> 00:05:12,946 {\an7}\h\hTHAT HAVE ADAPTED TO FEED ON THE TAILS 82 00:05:12,979 --> 00:05:15,114 {\an7}OF OTHER ELECTRIC FISH. 83 00:05:18,118 --> 00:05:21,722 {\an7}\hSTRANGE AS THESE CREATURES MIGHT SEEM TO THE NAKED EYE, 84 00:05:21,755 --> 00:05:24,625 {\an7}THEIR WORLD IS EVEN STRANGER. 85 00:05:24,658 --> 00:05:28,495 {\an7}IT’S A LIFE ELECTRIC. 86 00:05:28,528 --> 00:05:30,964 {\an7}\h\h\h\h\h\h\h\h\hBY CREATING ELECTRIC FIELDS AROUND THEM, 87 00:05:30,997 --> 00:05:35,902 {\an7}\h\h\hTHEY CAN COMMUNICATE AND NAVIGATE IN COMPLETE DARKNESS... 88 00:05:35,936 --> 00:05:39,006 {\an7}\h\hCONVERTED INTO SOUNDS SO THAT WE CAN HEAR THEM. 89 00:05:39,039 --> 00:05:42,109 {\an7}[BUZZING AND CLICKING] 90 00:05:42,142 --> 00:05:48,181 {\an7}TOGETHER THEY PLAY LIKE AN ORCHESTRA. 91 00:05:48,215 --> 00:05:52,352 {\an7}IT’S THIS ALIEN WORLD THAT FASCINATES WILL. 92 00:05:52,385 --> 00:05:54,420 {\an7}Will: A CORE PART \hOF MY RESEARCH 93 00:05:54,454 --> 00:05:57,791 {\an7}IS TO UNDERSTAND HOW MANY \h\h\hSPECIES THERE ARE, 94 00:05:57,824 --> 00:06:01,227 {\an7}\h\h\h\h\h\h\h\hTO UNDERSTAND WHERE THESE THINGS CAME FROM 95 00:06:01,261 --> 00:06:04,331 {\an7}\h\h\h\h\h\h\hAND HOW THEY USE THIS INCREDIBLE ELECTRIC SENSE 96 00:06:04,364 --> 00:06:07,601 {\an7}TO NAVIGATE THEIR WAY \h\hAROUND THE WORLD 97 00:06:07,634 --> 00:06:10,403 {\an7}AND TO DETECT OBJECTS \hAND TO COMMUNICATE 98 00:06:10,437 --> 00:06:11,939 {\an7}\h\h\h\hAND DO THESE EXTRAORDINARY THINGS 99 00:06:11,972 --> 00:06:13,974 {\an7}THAT OTHER FISH DON’T DO. 100 00:06:14,007 --> 00:06:16,042 {\an7}[THUNDER] 101 00:06:20,247 --> 00:06:23,217 {\an7}\h\h\h\h\h\h\h\h\h\hNarrator: ELECTRICITY IS ALL AROUND US. 102 00:06:23,250 --> 00:06:24,852 {\an7}[BUZZING] 103 00:06:24,885 --> 00:06:28,389 {\an7}\h\hAN INVISIBLE FORCE THAT POWERS OUR WORLD. 104 00:06:28,421 --> 00:06:32,759 {\an7}♪ 105 00:06:32,792 --> 00:06:35,862 {\an7}EVERYTHING WE DO IS CONTROLLED BY ELECTRIC SIGNALS 106 00:06:35,896 --> 00:06:37,965 {\an7}RUNNING THROUGH OUR BODIES. 107 00:06:40,500 --> 00:06:42,302 {\an7}WE CAN CONTROL TOUCH SCREENS 108 00:06:42,335 --> 00:06:43,736 {\an7}\h\h\h\h\hBY ALTERING THEIR ELECTRIC FIELDS 109 00:06:43,770 --> 00:06:46,706 {\an7}WITH OUR FINGERTIPS. 110 00:06:46,740 --> 00:06:51,545 {\an7}\h\h\h\hALL LIVING CELLS HAVE AN ELECTRIC CHARGE. 111 00:06:51,578 --> 00:06:55,415 {\an7}ELECTRIC FISH TAKE THIS ABILITY TO ANOTHER LEVEL. 112 00:06:57,484 --> 00:07:01,455 {\an7}[CLICKING] 113 00:07:01,488 --> 00:07:05,459 {\an7}\h\hTHE MOST POWERFUL IS THE ELECTRIC EEL. 114 00:07:05,492 --> 00:07:06,860 {\an7}IT’S NOT ACTUALLY AN EEL 115 00:07:06,893 --> 00:07:11,131 {\an7}BUT A GIANT KNIFEFISH-- 116 00:07:11,164 --> 00:07:12,666 {\an7}THE ONLY FISH IN THE AMAZON 117 00:07:12,699 --> 00:07:15,435 {\an7}\hCAPABLE OF HUNTING AND KILLING ITS PREY 118 00:07:15,468 --> 00:07:16,836 {\an7}WITH ELECTRICITY. 119 00:07:20,473 --> 00:07:25,511 {\an7}\h\h\h\h\h\h\h\hITS WHOLE BODY IS PURPOSE-BUILT TO BE ELECTRIC. 120 00:07:25,545 --> 00:07:28,948 {\an7}ALL OF ITS VITAL ORGANS \h\hARE NEAR ITS HEAD. 121 00:07:28,982 --> 00:07:33,620 {\an7}THE REST OF THE BODY \hIS A GIANT BATTERY. 122 00:07:33,653 --> 00:07:36,222 {\an7}THE SECRET TO THE EEL’S \hELECTRIC SUPER POWER 123 00:07:36,256 --> 00:07:38,391 {\an7}IS TWO ELECTRIC ORGANS: 124 00:07:38,425 --> 00:07:40,661 {\an7}THE HUNTER’S ORGAN AND THE MAIN ORGAN. 125 00:07:40,694 --> 00:07:43,230 {\an7}THEY MAKE THE HIGH-VOLTAGE \h\h\h\h\hCHARGES IT NEEDS 126 00:07:43,263 --> 00:07:45,866 {\an7}FOR DEFENSE AND ATTACK. 127 00:07:45,899 --> 00:07:48,001 {\an7}\h\h\hTHEY ARE PACKED WITH ELECTRIC CELLS, 128 00:07:48,034 --> 00:07:49,702 {\an7}KNOWN AS ELECTROCYTES, 129 00:07:49,736 --> 00:07:52,772 {\an7}LINED UP LIKE BATTERIES \h\h\hIN A FLASHLIGHT. 130 00:07:52,806 --> 00:07:55,642 {\an7}WHEN THIS MEGABANK OF NEARLY A HALF A MILLION ELECTROCYTES 131 00:07:55,675 --> 00:07:58,077 {\an7}DISCHARGE AT ONCE, 132 00:07:58,111 --> 00:08:01,281 {\an7}\h\h\h\hA SHOCK IS RELEASED INTO THE SURROUNDING WATER, 133 00:08:01,314 --> 00:08:04,284 {\an7}STUNNING ANYTHING WITHIN RANGE. 134 00:08:04,317 --> 00:08:05,852 {\an7}[BUZZING] 135 00:08:05,885 --> 00:08:07,987 {\an7}IN LESS THAN A SECOND, 136 00:08:08,021 --> 00:08:13,059 {\an7}THIS STEALTH HUNTER CAN TURN \hITSELF INTO A GIANT TASER, 137 00:08:13,093 --> 00:08:16,396 {\an7}\h\h\h\h\hPACKING A PUNCH WITH UP TO 1,000 VOLTS-- 138 00:08:16,429 --> 00:08:21,734 {\an7}80 TIMES THE ELECTRIC VOLTAGE \h\h\h\h\h\hOF A CAR BATTERY. 139 00:08:21,768 --> 00:08:27,340 {\an7}\h\h\h\h\h\h\hENOUGH TO TAKE ON THE AMAZON’S LARGEST PREDATOR. 140 00:08:27,374 --> 00:08:32,212 {\an7}[CLICKING] 141 00:08:32,245 --> 00:08:35,348 {\an7}\h\h\h\h\h\h\hTHIS CAIMAN THINKS HE’S FOUND DINNER, 142 00:08:35,382 --> 00:08:39,086 {\an7}\h\h\hBUT HE GETS MORE THAN HE BARGAINED FOR. 143 00:08:39,119 --> 00:08:40,621 {\an7}HIGH-VOLTAGE ELECTRIC SHOCKS 144 00:08:40,653 --> 00:08:44,590 {\an7}CAUSE THE CAIMAN’S MUSCLES TO CONTRACT UNCONTROLLABLY. 145 00:08:44,624 --> 00:08:50,864 {\an7}\h\h\h\h\h\h\h\hPARALYZED, HE’S UNABLE TO FIGHT BACK. 146 00:08:50,897 --> 00:08:54,434 {\an7}FINALLY THE EEL’S SHOCK SUBSIDES FOR A SECOND, 147 00:08:54,467 --> 00:08:56,803 {\an7}\h\h\hAND THE CAIMAN MAKES A BREAK FOR IT. 148 00:08:59,205 --> 00:09:01,908 {\an7}Will: IT REALLY NEVER \hCEASES TO AMAZE ME 149 00:09:01,941 --> 00:09:05,678 {\an7}HOW A FISH CAN GENERATE 150 00:09:05,712 --> 00:09:07,414 {\an7}THIS INCREDIBLY HIGH VOLTAGE, 151 00:09:07,447 --> 00:09:09,816 {\an7}\hAN ELECTRIC SHOCK THAT IS SO POWERFUL 152 00:09:09,849 --> 00:09:11,984 {\an7}THAT IT CAN KNOCK YOU OVER, 153 00:09:12,018 --> 00:09:16,923 {\an7}AND LIVE IN THIS DARK WORLD \h\h\h\h\h\hOF ELECTRICITY, 154 00:09:16,956 --> 00:09:22,428 {\an7}\hUSING ONLY ITS ELECTRIC SENSE IN COMBINATION WITH OTHER SENSES 155 00:09:22,462 --> 00:09:27,334 {\an7}\h\h\h\h\h\h\h\h\hTO CREATE A THREE-DIMENSIONAL WORLD. 156 00:09:27,367 --> 00:09:30,070 {\an7}Narrator: THE ELECTRIC EEL’S \h\h\h\h\h\hINGENIOUS DESIGN 157 00:09:30,103 --> 00:09:34,641 {\an7}MAY HAVE AIDED EARLY INVENTORS IN DEVELOPING THE FIRST BATTERY. 158 00:09:34,674 --> 00:09:36,276 {\an7}TODAY’S LEADING SCIENTISTS 159 00:09:36,309 --> 00:09:39,078 {\an7}STILL HAVE A LOT TO LEARN \h\h\hFROM ELECTRIC FISH, 160 00:09:39,112 --> 00:09:45,619 {\an7}AND WILL IS AT THE FOREFRONT \h\h\h\h\h\hOF THIS RESEARCH. 161 00:09:45,652 --> 00:09:50,223 {\an7}\hTHE SEARCH FOR ELECTRIC FISH TAKES HIM DEEP INTO THE AMAZON. 162 00:09:50,256 --> 00:09:56,429 {\an7}[BIRDS CHIRPING] 163 00:10:00,667 --> 00:10:03,270 {\an7}FEW WOULD ENDURE THE HARSH \h\h\hREALITY OF THE JUNGLE 164 00:10:03,303 --> 00:10:05,272 {\an7}ON A DAILY BASIS, 165 00:10:05,305 --> 00:10:08,175 {\an7}BUT THIS IS WILL’S OFFICE. 166 00:10:12,112 --> 00:10:17,317 {\an7}\h\h\h\h\hFOR A MODERN HUMAN, THIS IS NO TROPICAL PARADISE. 167 00:10:17,350 --> 00:10:19,819 {\an7}\h\h\h\hWill: VERY HARD TO WORK IN THE AMAZON. 168 00:10:19,853 --> 00:10:22,789 {\an7}\h\h\h\h\h\h\h\h\hTHERE ARE THE DISCOMFORT CHALLENGES-- 169 00:10:22,822 --> 00:10:26,592 {\an7}THE SUN AND THE TORRENTIAL RAIN. 170 00:10:26,626 --> 00:10:28,828 {\an7}AT TIMES IT’S ALMOST DEPRESSING. 171 00:10:28,862 --> 00:10:33,233 {\an7}♪ 172 00:10:33,266 --> 00:10:35,902 {\an7}\h\h\h\h\h\h\h\h\h\hNarrator: THE AMAZON SYSTEM IS SO VAST, 173 00:10:35,935 --> 00:10:40,339 {\an7}\h\hIT’S TWO-THIRDS THE SIZE OF THE ENTIRE UNITED STATES. 174 00:10:40,373 --> 00:10:42,709 {\an7}GETTING LOST IS A REAL DANGER. 175 00:10:42,742 --> 00:10:51,084 {\an7}♪ 176 00:10:51,117 --> 00:10:52,986 {\an7}IT’S THESE EXTREME CONDITIONS 177 00:10:53,019 --> 00:10:55,955 {\an7}\h\h\h\h\h\h\hTHAT HAVE KEPT THE AMAZON’S SECRETS HIDDEN. 178 00:10:55,989 --> 00:11:05,465 {\an7}♪ 179 00:11:05,498 --> 00:11:09,068 {\an7}WILL’S CHOSEN THIS LOCATION \h\h\h\h\h\h\hFOR A REASON. 180 00:11:09,102 --> 00:11:12,238 {\an7}\hTHE JUNGLE STREAMS THAT ARE OFFSHOOTS OF THE AMAZON RIVER 181 00:11:12,272 --> 00:11:14,908 {\an7}ARE PRIME ELECTRIC EEL HABITAT. 182 00:11:20,580 --> 00:11:22,582 {\an7}WILL CONSTRUCTS A JUNGLE LAB 183 00:11:22,615 --> 00:11:25,017 {\an7}\h\h\h\h\h\h\h\hTO RESEARCH THE ELECTRIC FISH HE FINDS 184 00:11:25,051 --> 00:11:30,790 {\an7}AND CREATE AN ENVIRONMENT WHERE HE CAN STUDY THEIR BEHAVIOR. 185 00:11:30,823 --> 00:11:33,959 {\an7}Will: THE SINGLE MOST IMPORTANT THING TO HAVE IN THE AMAZON, 186 00:11:33,993 --> 00:11:37,563 {\an7}\h\h\h\h\h\h\h\hOTHER THAN AN ITALIAN ESPRESSO MAKER, 187 00:11:37,597 --> 00:11:41,301 {\an7}BY FAR THE MOST IMPORTANT THING IS MOSQUITO REPELLENT. 188 00:11:41,334 --> 00:11:43,236 {\an7}\h\hBUT NOT ALL RAINFORESTS ARE THAT BAD FOR MOSQUITOS. 189 00:11:43,269 --> 00:11:44,704 {\an7}THERE ARE SOME PLACES \h\h\h\hIN THE AMAZON 190 00:11:44,737 --> 00:11:47,173 {\an7}WHICH ARE SURPRISINGLY \h\hFREE OF MOSQUITOS, 191 00:11:47,207 --> 00:11:48,442 {\an7}\hBUT I HAVE TO GO WHERE THE FISH ARE, 192 00:11:48,474 --> 00:11:52,511 {\an7}NOT WHERE THE MOSQUITOS AREN’T. 193 00:11:52,545 --> 00:11:54,447 {\an7}\h\h\h\h\h\h\h\h\h\h\hNarrator: WILL HAS ONE MORE SECRET WEAPON 194 00:11:54,480 --> 00:11:57,483 {\an7}THAT’S EVEN MORE IMPORTANT-- 195 00:11:57,517 --> 00:11:59,519 {\an7}A SIMPLE BUT ESSENTIAL DEVICE 196 00:11:59,552 --> 00:12:03,222 {\an7}\hTHAT GIVES HIM ACCESS TO THIS ELECTRIC WORLD. 197 00:12:04,557 --> 00:12:08,161 {\an7}\h\h\hWILL BUILDS A GADGET FOR FINDING ELECTRIC FISH. 198 00:12:08,194 --> 00:12:11,964 {\an7}AN AMPLIFIER AND LOUDSPEAKER \hCONNECTED TO TWO ELECTRODES 199 00:12:11,998 --> 00:12:15,835 {\an7}WILL TURN THE ELECTRIC FISH \h\h\h\hSIGNALS INTO SOUND. 200 00:12:15,868 --> 00:12:19,638 {\an7}\h\h\h\hWill: I CAN FIND FISH, PINPOINT THEIR EXACT POSITION, 201 00:12:19,672 --> 00:12:20,439 {\an7}AND CATCH THEM 202 00:12:20,473 --> 00:12:21,541 {\an7}WITHOUT BEING ABLE TO SEE THEM. 203 00:12:21,574 --> 00:12:24,010 {\an7}\hI CAN EAVESDROP INTO THEIR WORLD, 204 00:12:24,043 --> 00:12:28,180 {\an7}USING MY ELECTRIC FISH FINDER. 205 00:12:28,214 --> 00:12:29,515 {\an7}[STATIC] 206 00:12:29,549 --> 00:12:31,084 {\an7}THAT SOUNDS GOOD. 207 00:12:34,354 --> 00:12:37,824 {\an7}\hNarrator: THERE ARE OVER 200 KNOWN SPECIES OF ELECTRIC FISH, 208 00:12:37,857 --> 00:12:39,892 {\an7}INCLUDING THE ELECTRIC EEL, 209 00:12:39,926 --> 00:12:42,862 {\an7}\h\h\h\h\h\h\h\hAND EACH HAS A UNIQUE ELECTRIC SIGNATURE. 210 00:12:42,895 --> 00:12:48,934 {\an7}[BUZZING] 211 00:12:48,968 --> 00:12:52,004 {\an7}\h\h\h\h\hTHE SMALLER KNIFEFISH ARE SIMILAR IN SETUP TO THE EEL, 212 00:12:52,038 --> 00:12:55,108 {\an7}BUT NOT NEARLY AS POWERFUL. 213 00:12:55,141 --> 00:12:57,677 {\an7}THEY DON’T USE ELECTRICITY \h\h\h\h\h\h\hTO STUN PREY, 214 00:12:57,710 --> 00:13:02,515 {\an7}BUT TO NAVIGATE AND COMMUNICATE. 215 00:13:02,548 --> 00:13:03,883 {\an7}LIKE THE EEL, 216 00:13:03,916 --> 00:13:09,789 {\an7}KNIFEFISH CREATE ELECTRICITY \hFROM THEIR ELECTRIC ORGAN. 217 00:13:09,822 --> 00:13:13,426 {\an7}\h\h\h\hA SIGNAL FROM THE BRAIN OPENS UP MICROSCOPIC CHANNELS, 218 00:13:13,459 --> 00:13:19,632 {\an7}\hALLOWING CHARGED ATOMS AND MOLECULES TO RUSH IN. 219 00:13:19,666 --> 00:13:20,734 {\an7}EACH ELECTROCYTE 220 00:13:20,767 --> 00:13:24,037 {\an7}\h\hIS NOW CHARGED UP LIKE A TINY BATTERY. 221 00:13:27,106 --> 00:13:28,107 {\an7}THEIR COMBINED FORCES 222 00:13:28,141 --> 00:13:32,612 {\an7}CREATE AN ELECTRIC FIELD \h\h\h\hAROUND THE FISH. 223 00:13:32,645 --> 00:13:35,882 {\an7}\h\hELECTRORECEPTORS EMBEDDED IN THE SKIN 224 00:13:35,915 --> 00:13:38,618 {\an7}\h\h\hSENSE ANYTHING THAT PASSES THROUGH THE FIELD. 225 00:13:38,651 --> 00:13:41,487 {\an7}IT’S LIKE FEELING THE SPACE \hAROUND YOU SIMULTANEOUSLY 226 00:13:41,521 --> 00:13:43,790 {\an7}WITH A THOUSAND FINGERS. 227 00:13:46,459 --> 00:13:48,728 {\an7}THEIR CHARACTERISTIC KNIFE SHAPE 228 00:13:48,761 --> 00:13:52,565 {\an7}INCREASES THE SURFACE AREA FOR THESE ELECTRORECEPTORS. 229 00:13:52,598 --> 00:13:56,268 {\an7}\hAN UNDULATING ANAL FIN ALLOWS THE KNIFEFISH TO SWIM BACKWARDS 230 00:13:56,302 --> 00:13:57,970 {\an7}AND EVEN VERTICALLY 231 00:13:58,004 --> 00:14:01,841 {\an7}AS THEY SCAN THE ENVIRONMENT \h\h\hFOR PREY OR PREDATORS, 232 00:14:01,874 --> 00:14:05,077 {\an7}\hJUST LIKE AN AIRPORT SCANNER CAN SEE WHAT’S IN YOUR POCKETS 233 00:14:05,111 --> 00:14:08,681 {\an7}AND IF IT’S DANGEROUS. 234 00:14:08,715 --> 00:14:12,085 {\an7}IT’S THESE ELECTRIC FIELDS \hTHAT WILL IS LOOKING FOR. 235 00:14:17,056 --> 00:14:21,160 {\an7}[BIRD CALLING] 236 00:14:21,194 --> 00:14:24,130 {\an7}\h\hWill: SO, I’M SETTING OUT WITH MY ELECTRIC FISH FINDER 237 00:14:24,163 --> 00:14:25,398 {\an7}AND A DIP NET 238 00:14:25,431 --> 00:14:29,368 {\an7}TO LOOK FOR ELECTRIC FISH \hIN RAINFOREST STREAMS. 239 00:14:29,402 --> 00:14:34,340 {\an7}\h\h\hAND I EXPECT TO FIND WEAKLY ELECTRIC KNIFEFISH. 240 00:14:34,374 --> 00:14:37,844 {\an7}\h\h\h\hI MIGHT FIND THE ODD ELECTRIC EEL. 241 00:14:37,877 --> 00:14:40,947 {\an7}AND THE REAL PRIZE TODAY IS TO FIND A NEW SPECIES. 242 00:14:40,980 --> 00:14:44,250 {\an7}\h\h\h\h\h\hTHIS IS A NEW AREA, I’VE NEVER WORKED HERE BEFORE, 243 00:14:44,283 --> 00:14:45,451 {\an7}SO THERE’S A GOOD CHANCE 244 00:14:45,485 --> 00:14:49,155 {\an7}\h\h\h\hTHAT I MIGHT FIND SOMETHING NEW TO SCIENCE. 245 00:14:49,188 --> 00:14:51,457 {\an7}[CLICKS PULSING] 246 00:14:51,491 --> 00:14:53,526 {\an7}THAT RHYTHMIC PULSING 247 00:14:53,559 --> 00:14:57,229 {\an7}\h\h\hIS WHAT SOUNDS LIKE QUITE A SMALL KNIFEFISH. 248 00:14:57,263 --> 00:14:58,664 {\an7}[CLICKS PULSING] 249 00:14:58,698 --> 00:15:00,133 {\an7}SOMETIMES IT TAKES A FEW GOES \h\h\h\h\h\h\h\hTO GET THEM. 250 00:15:00,166 --> 00:15:04,737 {\an7}THEY’RE EXPERTS AT HIDING. 251 00:15:04,771 --> 00:15:07,240 {\an7}THAT WASN’T VERY, VERY GOOD. 252 00:15:07,273 --> 00:15:10,643 {\an7}I DON’T THINK THAT ONE \h\h\h\h\hGOT IN THERE. 253 00:15:10,676 --> 00:15:15,648 {\an7}ELECTRIC FISH, ONE; ME, ZERO. 254 00:15:15,681 --> 00:15:19,818 {\an7}IT’S...VERY DIRTY WORK, 255 00:15:19,852 --> 00:15:23,322 {\an7}AND IT’S SOMETIMES \h\hVERY ANNOYING. 256 00:15:23,356 --> 00:15:26,025 {\an7}GETTING AWAY. 257 00:15:26,058 --> 00:15:28,794 {\an7}AAH! 258 00:15:28,828 --> 00:15:32,065 {\an7}\h\hHE’S GIVING ME A RUN FOR MY MONEY. 259 00:15:32,098 --> 00:15:33,066 {\an7}[CLICKS PULSING] 260 00:15:33,099 --> 00:15:35,568 {\an7}THIS ONE IS VERY CRAFTY. 261 00:15:35,601 --> 00:15:38,404 {\an7}IT’S DISAPPEARED. 262 00:15:38,438 --> 00:15:40,106 {\an7}MISSED IT. 263 00:15:40,139 --> 00:15:41,674 {\an7}I SAW HIM RIGHT AT THE SURFACE. 264 00:15:41,707 --> 00:15:45,010 {\an7}DAMN. 265 00:15:45,044 --> 00:15:47,580 {\an7}WELL, I HAVEN’T CAUGHT HIM, 266 00:15:47,613 --> 00:15:50,749 {\an7}\h\h\h\h\h\h\hBUT THERE’S SOMETHING ELSE IN THERE. 267 00:15:50,783 --> 00:15:53,085 {\an7}OH, VERY COOL! 268 00:15:53,119 --> 00:15:56,589 {\an7}IT’S A LEAF FISH. 269 00:15:56,622 --> 00:15:59,558 {\an7}\h\h\hHIDDEN AMONG THE LEAVES AT THE BOTTOM OF THE STREAM, 270 00:15:59,592 --> 00:16:02,295 {\an7}HIDING... 271 00:16:02,328 --> 00:16:05,031 {\an7}IS A LEAF FISH. 272 00:16:05,064 --> 00:16:07,733 {\an7}AND, UH, THESE ARE EXTRAORDINARY FISH. 273 00:16:07,767 --> 00:16:10,503 {\an7}\h\h\hWHERE IS HE NOW? I SAW HIM A SECOND AGO. 274 00:16:10,536 --> 00:16:12,938 {\an7}THERE IT IS. 275 00:16:12,972 --> 00:16:16,242 {\an7}LOOK AT THAT. 276 00:16:16,275 --> 00:16:18,677 {\an7}OH! IT JUST VIBRATED, 277 00:16:18,711 --> 00:16:20,346 {\an7}LIKE A CELL PHONE. 278 00:16:20,379 --> 00:16:22,948 {\an7}\h\h\h\h\hTHESE THINGS ARE NOT ELECTRIC FISH. 279 00:16:22,982 --> 00:16:25,117 {\an7}IT’S ACTUALLY MORE CLOSELY \h\h\h\hRELATED TO A PERCH. 280 00:16:25,151 --> 00:16:27,620 {\an7}\h\h\h\h\h\h\hIT’S VIBRATING LIKE A CELL PHONE IN MY HAND. 281 00:16:27,653 --> 00:16:31,957 {\an7}WHAT THEY DO IS THEY COMMUNICATE WITH SOUNDS, UNDERWATER SOUNDS, 282 00:16:31,991 --> 00:16:34,327 {\an7}\h\h\h\hAND THE VIBRATION IS THE SOUND GENERATION. 283 00:16:34,360 --> 00:16:35,761 {\an7}\h\h\h\h\h\hABSOLUTELY EXTRAORDINARY ANIMALS. 284 00:16:35,795 --> 00:16:38,931 {\an7}♪ 285 00:16:38,965 --> 00:16:41,401 {\an7}\h\h\hNarrator: NOT ONLY DOES IT LOOK LIKE A LEAF; 286 00:16:41,434 --> 00:16:43,970 {\an7}IT EVEN BEHAVES LIKE A LEAF, 287 00:16:44,003 --> 00:16:47,406 {\an7}SWIMMING AS THOUGH IT’S DRIFTING SLOWLY IN THE CURRENT. 288 00:16:47,440 --> 00:16:53,313 {\an7}♪ 289 00:16:53,346 --> 00:16:55,381 {\an7}BEHIND THIS DEMURE DISGUISE 290 00:16:55,414 --> 00:16:58,250 {\an7}HIDES AN INCREDIBLE \h\hAMBUSH HUNTER. 291 00:16:58,284 --> 00:17:06,592 {\an7}♪ 292 00:17:06,626 --> 00:17:10,763 {\an7}\h\h\h\h\h\hFLOATING SIDEWAYS, IT SNEAKS IN CLOSER TO ITS PREY. 293 00:17:14,000 --> 00:17:17,670 {\an7}\h\hTHIS NEON TETRA IS TOTALLY UNAWARE. 294 00:17:17,703 --> 00:17:19,371 {\an7}WHAT HE THINKS IS A LEAF 295 00:17:19,405 --> 00:17:23,643 {\an7}IS ACTUALLY A SKILLFULLY \h\h\hCAMOUFLAGED KILLER. 296 00:17:23,676 --> 00:17:30,583 {\an7}♪ 297 00:17:30,616 --> 00:17:39,892 {\an7}♪ 298 00:17:49,168 --> 00:17:52,238 {\an7}\hWILL CONTINUES TO SEARCH FOR ELECTRIC FISH SIGNALS. 299 00:18:10,656 --> 00:18:14,059 {\an7}THE FISH FINDER DETECTS \h\h\hA FAMILIAR PULSE. 300 00:18:14,093 --> 00:18:22,435 {\an7}[POPPING] 301 00:18:22,468 --> 00:18:25,037 {\an7}Will: THAT POPPING SOUND 302 00:18:25,071 --> 00:18:29,342 {\an7}IS THE ELECTRIC DISCHARGE \h\h\hOF AN ELECTRIC EEL. 303 00:18:29,375 --> 00:18:30,910 {\an7}WOW. HE’S QUITE CLOSE. 304 00:18:30,943 --> 00:18:33,112 {\an7}I SHOULD BE A BIT CAREFUL. 305 00:18:33,145 --> 00:18:35,114 {\an7}UH... 306 00:18:35,147 --> 00:18:38,684 {\an7}I THINK WE MIGHT BE ABLE \h\h\hTO CATCH HIM HERE. 307 00:18:38,718 --> 00:18:40,019 {\an7}[CRACKING] 308 00:18:40,052 --> 00:18:42,922 {\an7}OOH. HEAR THAT SORT OF SUDDEN CRACKING SOUND? 309 00:18:42,955 --> 00:18:44,123 {\an7}THAT’S THE STRONGEST CHARGE. 310 00:18:44,156 --> 00:18:45,624 {\an7}[CRACKING] 311 00:18:45,658 --> 00:18:46,726 {\an7}WHOA! OK. 312 00:18:46,759 --> 00:18:48,294 {\an7}\h\h\h\h\h\h\hNarrator: HE NEEDS TO BE CAREFUL. 313 00:18:48,327 --> 00:18:51,797 {\an7}THE EEL’S SHOCK IS STRONG ENOUGH TO STOP HIS HEART. 314 00:18:53,165 --> 00:18:54,800 {\an7}\h\h\h\h\h\h\h\hNarrator: WATERLOGGED RUBBER BOOTS 315 00:18:54,834 --> 00:18:59,839 {\an7}\hPROVIDE NO PROTECTION FROM THIS LIVING TASER. 316 00:18:59,872 --> 00:19:04,643 {\an7}Will: BAD SHOCKS ARE NASTY \h\hAND ARE TO BE AVOIDED. 317 00:19:04,677 --> 00:19:09,315 {\an7}ONCE I GOT SHOCKED WHEN WADING \h\h\hTHROUGH A SHALLOW STREAM, 318 00:19:09,348 --> 00:19:11,383 {\an7}AND THAT WAS VERY, VERY NASTY. 319 00:19:19,558 --> 00:19:24,396 {\an7}\hNarrator: THE EEL HAS LODGED ITSELF TIGHTLY UNDER THE BANK. 320 00:19:24,430 --> 00:19:25,731 {\an7}Will: HE’S DEEP INSIDE A HOLE. 321 00:19:25,765 --> 00:19:29,269 {\an7}THERE IS ABSOLUTELY NO WAY \hI’M GOING TO GET HIM OUT. 322 00:19:29,301 --> 00:19:33,739 {\an7}\hTHE ONLY THING IS I CAN, I COULD COME BACK AT NIGHT. 323 00:19:33,773 --> 00:19:36,109 {\an7}\h\h\hHE’LL COME OUT AT NIGHT AND FORAGE AROUND THE STREAM, 324 00:19:36,142 --> 00:19:38,077 {\an7}MAYBE EVEN GO INTO SIDE STREAMS, 325 00:19:38,110 --> 00:19:40,479 {\an7}\h\hAND I’LL TRY AND FIND HIM AT NIGHT AND CATCH HIM THEN, 326 00:19:40,513 --> 00:19:43,816 {\an7}BUT RIGHT NOW, NO WAY. 327 00:19:43,849 --> 00:19:46,185 {\an7}Narrator: ELECTRIC EELS PREFER GENTLE FLOWING STREAMS 328 00:19:46,218 --> 00:19:48,387 {\an7}TO THE VAST OPEN RIVER 329 00:19:48,421 --> 00:19:49,722 {\an7}BECAUSE THEIR LOW PULSE RATE 330 00:19:49,755 --> 00:19:54,526 {\an7}MEANS THEY ARE UNABLE TO TRACK FAST-MOVING OBJECTS. 331 00:19:54,560 --> 00:19:55,995 {\an7}WHEN NIGHT FALLS, 332 00:19:56,028 --> 00:20:00,900 {\an7}THESE CALM WATERS WILL TURN INTO AN EEL HUNTING GROUND. 333 00:20:00,933 --> 00:20:05,337 {\an7}[THUNDER] 334 00:20:09,208 --> 00:20:12,411 {\an7}IT’S RAINY SEASON IN THE AMAZON. 335 00:20:12,445 --> 00:20:23,423 {\an7}♪ 336 00:20:23,456 --> 00:20:28,261 {\an7}THE DELUGE DRENCHES THE FOREST, 337 00:20:28,294 --> 00:20:32,732 {\an7}TURNING THE LEAFY FLOOR \h\h\hINTO A GIANT BOG. 338 00:20:33,966 --> 00:20:37,803 {\an7}\h\h\h\hWill: I’M DRINKING DISGUSTING INSTANT COFFEE, 339 00:20:37,837 --> 00:20:41,507 {\an7}USING COLD WATER. 340 00:20:41,540 --> 00:20:43,809 {\an7}IT’S MISERABLE, IT’S WET. 341 00:20:43,843 --> 00:20:46,145 {\an7}HERZOG WAS RIGHT-- \hIT’S DEPRESSING. 342 00:20:50,182 --> 00:20:53,719 {\an7}\h\hEVEN ON HOT DAYS, WHEN I’M BOILING HOT 343 00:20:53,753 --> 00:20:56,389 {\an7}AND MOSQUITOS ARE BITING ME \h\h\h\hOR I GET DRENCHED, 344 00:20:56,422 --> 00:20:58,925 {\an7}\h\hI KEEP GOING BECAUSE IT’S JUST THAT CHALLENGE 345 00:20:58,958 --> 00:21:03,062 {\an7}\h\h\hOF NEVER KNOWING WHEN YOU GET SOMETHING. 346 00:21:03,095 --> 00:21:06,198 {\an7}Narrator: THE CONSTANT RAIN MAKES FIELDWORK UNPLEASANT, 347 00:21:06,232 --> 00:21:07,700 {\an7}AND THE INCREASING WATER LEVELS 348 00:21:07,733 --> 00:21:10,536 {\an7}WILL MAKE FINDING AN EEL \h\h\h\h\h\hEVEN HARDER. 349 00:21:14,974 --> 00:21:20,146 {\an7}FINALLY THE STORM BREAKS. 350 00:21:20,179 --> 00:21:24,216 {\an7}AT NIGHT, EELS COME OUT TO HUNT IN THE SWOLLEN CREEKS. 351 00:21:28,020 --> 00:21:32,324 {\an7}Will: FISH FINDER. 352 00:21:32,358 --> 00:21:36,963 {\an7}HEAD TORCH. 353 00:21:36,996 --> 00:21:38,064 {\an7}AND DIP NET. 354 00:21:38,097 --> 00:21:39,565 {\an7}I’M READY. 355 00:21:42,802 --> 00:21:45,271 {\an7}Narrator: WILL IS HOPING TO FIND A DECENT-SIZED SPECIMEN 356 00:21:45,304 --> 00:21:48,140 {\an7}TO PUT SOME OF HIS THEORIES \h\h\h\h\h\h\hTO THE TEST. 357 00:21:48,174 --> 00:22:00,219 {\an7}♪ 358 00:22:00,252 --> 00:22:13,232 {\an7}♪ 359 00:22:13,265 --> 00:22:17,069 {\an7}\h\h\h90% HUMIDITY RAISES THE STAKES. 360 00:22:17,102 --> 00:22:20,405 {\an7}SWEAT IS A GOOD CONDUCTOR \h\h\h\h\hOF ELECTRICITY, 361 00:22:20,439 --> 00:22:23,642 {\an7}AND ANY SHOCK IS MUCH MORE DANGEROUS WHEN YOU’RE WET. 362 00:22:23,676 --> 00:22:28,748 {\an7}♪ 363 00:22:28,781 --> 00:22:31,884 {\an7}\h\h\h\h\hHE RETURNS TO THE EEL’S HIDEOUT. 364 00:22:31,917 --> 00:22:36,321 {\an7}♪ 365 00:22:36,355 --> 00:22:41,493 {\an7}[CLICKING] 366 00:22:41,527 --> 00:22:43,362 {\an7}THE ULTIMATE STEALTH MACHINE 367 00:22:43,395 --> 00:22:48,367 {\an7}\h\h\h\h\h\h\h\hIS NO MATCH FOR WILL’S MODERN GADGETRY. 368 00:22:48,400 --> 00:22:49,801 {\an7}Will: THERE’S AN EEL. 369 00:22:49,835 --> 00:22:55,541 {\an7}Narrator: NOW ALL HE HAS TO DO IS CATCH IT... 370 00:22:55,574 --> 00:22:58,777 {\an7}WITHOUT GETTING SHOCKED. 371 00:22:58,811 --> 00:23:00,713 {\an7}Will: AH. OK. 372 00:23:03,749 --> 00:23:04,717 {\an7}Man: WHEN DO WE START? 373 00:23:04,750 --> 00:23:06,185 {\an7}Will: OK, START. 374 00:23:06,218 --> 00:23:08,287 {\an7}WOW. OH, HERE. YEAH, OK. 375 00:23:11,724 --> 00:23:13,526 {\an7}\h\h\h\h\h\h\hNarrator: BIOLOGIST WILL CRAMPTON 376 00:23:13,559 --> 00:23:15,928 {\an7}IS ATTEMPTING TO CATCH \h\h\hAN ELECTRIC EEL. 377 00:23:15,961 --> 00:23:17,062 {\an7}Will: OK. 378 00:23:20,099 --> 00:23:22,635 {\an7}\h\h\h\h\h\hNarrator: SPECIAL ANTI-CONDUCTIVE RUBBER GLOVES 379 00:23:22,668 --> 00:23:26,238 {\an7}\h\hSHOULD STOP THE SHOCK FROM GOING TO HIS HEART. 380 00:23:26,272 --> 00:23:27,406 {\an7}Will: OK. 381 00:23:27,439 --> 00:23:30,709 {\an7}♪ 382 00:23:30,743 --> 00:23:32,211 {\an7}AAH! 383 00:23:32,244 --> 00:23:34,346 {\an7}IT SHOCKED ME. 384 00:23:34,380 --> 00:23:36,048 {\an7}\h\h\h\h\h\h\h\h\hNarrator: A SHOCK HITS THE METAL NET 385 00:23:36,081 --> 00:23:38,417 {\an7}AND TOUCHES WILL’S WET CLOTHES, 386 00:23:38,450 --> 00:23:40,252 {\an7}\h\h\h\hBUT THIS TIME HE GETS OFF LIGHTLY. 387 00:23:40,286 --> 00:23:43,256 {\an7}Will: OH! HA HA! AH. 388 00:23:43,289 --> 00:23:45,792 {\an7}TAKE THAT OFF, YEAH. 389 00:23:45,824 --> 00:23:48,293 {\an7}WOW, LOOK AT THIS. 390 00:23:48,327 --> 00:23:50,996 {\an7}Narrator: WITH THE EEL \h\hSAFELY IN THE OPEN, 391 00:23:51,030 --> 00:23:52,765 {\an7}WILL FINALLY HAS A CHANCE 392 00:23:52,798 --> 00:23:55,934 {\an7}\h\h\h\h\h\h\hTO GET UP CLOSE TO THIS MYSTERIOUS CREATURE. 393 00:23:55,968 --> 00:23:57,636 {\an7}Will: THAT’S UNBELIEVABLE. 394 00:23:57,670 --> 00:24:01,474 {\an7}\h\hI MEAN, THAT’S A ONE METER, 20 CENTIMETER EEL IN A STREAM. 395 00:24:01,507 --> 00:24:03,209 {\an7}LOOK AT THE SIZE OF THIS STREAM. 396 00:24:03,242 --> 00:24:06,946 {\an7}\h\h\h\h\hIT’S ONLY ABOUT HALF ITS LENGTH IN WIDTH. 397 00:24:06,979 --> 00:24:09,615 {\an7}AND...I THINK WHAT MUST HAPPEN 398 00:24:09,648 --> 00:24:11,683 {\an7}IS THE EELS COME OUT \h\hOF LARGER STREAMS 399 00:24:11,717 --> 00:24:15,087 {\an7}AND COME UP AT NIGHT, \hHUNTING SMALL FISH. 400 00:24:15,120 --> 00:24:16,855 {\an7}\hUH, IT’S JUST INCREDIBLE TO FIND SOMETHING LIKE THAT 401 00:24:16,889 --> 00:24:18,791 {\an7}IN A STREAM THIS SIZE. 402 00:24:18,824 --> 00:24:21,393 {\an7}\h\h\h\hNarrator: MOST FISH CAN’T SURVIVE OUT OF WATER, 403 00:24:21,427 --> 00:24:24,530 {\an7}\h\h\h\h\h\h\hBUT THE EEL HAS ANOTHER SUPER POWER. 404 00:24:24,563 --> 00:24:27,466 {\an7}IT CAN BREATHE AIR, 405 00:24:27,499 --> 00:24:30,102 {\an7}WHICH MEANS WILL CAN STUDY IT \h\h\h\h\h\hOUT OF THE WATER 406 00:24:30,135 --> 00:24:32,137 {\an7}WITHOUT HARMING IT. 407 00:24:34,740 --> 00:24:37,943 {\an7}BUT FOR NOW, IT’S MORE AT HOME IN AN INFLATABLE POOL. 408 00:24:37,977 --> 00:24:39,111 {\an7}Will: HE’S BIG. 409 00:24:39,144 --> 00:24:44,783 {\an7}♪ 410 00:24:44,817 --> 00:24:47,019 {\an7}\h\h\h\h\h\hA GOOD PAIR OF THICK RUBBER GLOVES. 411 00:24:47,052 --> 00:24:49,054 {\an7}\h\h\hTHIS IS A REALLY ESSENTIAL PIECE OF KIT 412 00:24:49,088 --> 00:24:51,757 {\an7}FOR WORKING WITH ELECTRIC EELS. 413 00:24:51,790 --> 00:24:56,395 {\an7}THESE ONES ARE RATED \h\hTO 10,000 VOLTS, 414 00:24:56,428 --> 00:24:57,763 {\an7}WHICH IS MORE THAN ENOUGH. 415 00:25:01,233 --> 00:25:03,102 {\an7}THIS IS PRETTY HEAVY. 416 00:25:14,680 --> 00:25:17,583 {\an7}\h\h\h\hIF WE CAN JUST MOVE HIM AROUND HERE... 417 00:25:17,616 --> 00:25:19,051 {\an7}THESE ARE HIS GUTS, 418 00:25:19,084 --> 00:25:21,453 {\an7}\h\h\h\h\h\h\h\h\h\h\h\hAND HE, HE DOESN’T LIKE THAT, OBVIOUSLY. 419 00:25:21,487 --> 00:25:25,491 {\an7}BUT, UM, THE VISCERAL CAVITY \hIS RESTRICTED TO THIS AREA. 420 00:25:25,524 --> 00:25:27,793 {\an7}ITS STOMACH, ITS LIVER, 421 00:25:27,826 --> 00:25:30,462 {\an7}ALL OF ITS VISCERAL ORGANS \hARE LOCATED IN THIS AREA. 422 00:25:30,496 --> 00:25:33,399 {\an7}THE ANUS OF THE ELECTRIC EEL \h\h\h\h\h\hIS LOCATED HERE, 423 00:25:33,432 --> 00:25:34,767 {\an7}UNDERNEATH ITS CHIN. 424 00:25:34,800 --> 00:25:38,904 {\an7}\h\h\h\h\hIT NEEDS TO DEDICATE AS MUCH OF ITS BODY AS POSSIBLE 425 00:25:38,937 --> 00:25:40,105 {\an7}TO ELECTRIC ORGANS 426 00:25:40,139 --> 00:25:45,778 {\an7}TO GENERATE THIS ENORMOUS \h\h\hELECTRICAL OUTPUT. 427 00:25:45,811 --> 00:25:47,780 {\an7}Narrator: PERHAPS THE MOST \h\h\h\h\hSTARTLING FEATURE 428 00:25:47,813 --> 00:25:49,281 {\an7}OF AN EEL’S BODY 429 00:25:49,314 --> 00:25:51,616 {\an7}IS HIDING INSIDE ITS MOUTH. 430 00:25:51,650 --> 00:25:52,784 {\an7}POP IT OPEN, 431 00:25:52,818 --> 00:25:55,654 {\an7}AND YOU’LL FIND ITS LUNG. 432 00:25:55,687 --> 00:25:57,522 {\an7}\h\h\h\hWill: WE’LL TRY AND OPEN UP HIS MOUTH. 433 00:25:57,556 --> 00:25:59,425 {\an7}IF HE COOPERATES, THAT IS. 434 00:25:59,458 --> 00:26:02,861 {\an7}THE ENTIRE LINING OF THE MOUTH OF AN ELECTRIC EEL 435 00:26:02,895 --> 00:26:06,198 {\an7}IS MODIFIED FOR EXTRACTING \h\h\hOXYGEN FROM THE AIR. 436 00:26:06,231 --> 00:26:07,299 {\an7}ESSENTIALLY IT’S A LUNG. 437 00:26:07,332 --> 00:26:09,467 {\an7}\h\h\h\h\hIN FACT, BECAUSE ELECTRIC EELS BREATHE AIR, 438 00:26:09,501 --> 00:26:11,837 {\an7}\h\h\h\h\h\h\hWE’RE ABLE TO KEEP THEM OUT OF THE WATER 439 00:26:11,870 --> 00:26:12,637 {\an7}FOR VERY LONG PERIODS OF TIME. 440 00:26:12,671 --> 00:26:14,039 {\an7}THEY DON’T SEEM TO MIND AT ALL. 441 00:26:14,073 --> 00:26:15,808 {\an7}HERE WE GO. 442 00:26:18,710 --> 00:26:25,483 {\an7}SEE, THERE’S A PINK FOLDED LINING TO THE ENTIRE MOUTH. 443 00:26:25,517 --> 00:26:26,618 {\an7}OOH, HE BIT ME 444 00:26:26,652 --> 00:26:27,887 {\an7}\h\h\h\h\h\hAND SHOCKED ME AT THE SAME TIME, I THINK, 445 00:26:27,920 --> 00:26:29,455 {\an7}BUT I DIDN’T FEEL IT \hTHROUGH THE GLOVES. 446 00:26:29,488 --> 00:26:31,523 {\an7}CERTAINLY FELT THE BITE. 447 00:26:31,557 --> 00:26:38,197 {\an7}♪ 448 00:26:38,230 --> 00:26:40,332 {\an7}\h\h\hNarrator: THE EEL GETS 80% OF ITS OXYGEN 449 00:26:40,365 --> 00:26:42,467 {\an7}BY BREATHING AIR... 450 00:26:45,637 --> 00:26:48,373 {\an7}SURFACING FOR A BREATH \h\h\hEVERY 10 MINUTES. 451 00:26:48,407 --> 00:26:58,117 {\an7}♪ 452 00:26:58,150 --> 00:27:00,986 {\an7}\h\h\h\h\hREMARKABLE AS IT IS TO HAVE A LUNG IN ITS MOUTH, 453 00:27:01,019 --> 00:27:06,858 {\an7}IT’S A DELICATE STRUCTURE THAT COULD GET DAMAGED BY SPINY PREY. 454 00:27:06,892 --> 00:27:08,861 {\an7}\h\h\h\h\h\hSO THE EEL HAS A HUNTING STRATEGY 455 00:27:08,894 --> 00:27:12,264 {\an7}THAT PROTECTS IT FROM INJURY. 456 00:27:12,297 --> 00:27:15,567 {\an7}IT RELIES ON STEALTH, NOT SPEED. 457 00:27:15,601 --> 00:27:22,141 {\an7}♪ 458 00:27:22,174 --> 00:27:24,209 {\an7}[CLICKING] 459 00:27:24,243 --> 00:27:25,945 {\an7}SENSORY PITS ON ITS SKIN 460 00:27:25,978 --> 00:27:30,649 {\an7}DETECT TINY MOVEMENTS \h\h\h\hOF ITS PREY. 461 00:27:30,682 --> 00:27:33,118 {\an7}USING LOW VOLTAGE ELECTRIC PULSES, 462 00:27:33,152 --> 00:27:35,688 {\an7}HE SENSES A FISH NEARBY. 463 00:27:40,893 --> 00:27:44,864 {\an7}WITH ITS ELECTRO VISION, THERE IS NOWHERE TO HIDE. 464 00:27:44,897 --> 00:27:51,003 {\an7}[CLICKING] 465 00:27:58,777 --> 00:28:04,950 {\an7}[BUZZING] 466 00:28:06,752 --> 00:28:10,189 {\an7}[CLICKING] 467 00:28:10,222 --> 00:28:12,224 {\an7}NOW IT’S IN RANGE. 468 00:28:14,359 --> 00:28:18,263 {\an7}\hHE PREPARES TO UNLEASH A DEADLY ELECTRIC SHOCK. 469 00:28:21,967 --> 00:28:23,936 {\an7}CLOAKED IN DARKNESS, 470 00:28:23,969 --> 00:28:28,640 {\an7}\h\hTHE ELECTRIC EEL MOVES IN ON ITS PREY. 471 00:28:28,674 --> 00:28:30,342 {\an7}\h\h\h\hIT SENDS OUT A HIGH-VOLTAGE SHOCK 472 00:28:30,375 --> 00:28:33,211 {\an7}THAT STUNS THE FISH... 473 00:28:33,245 --> 00:28:36,215 {\an7}[BUZZING] 474 00:28:36,248 --> 00:28:39,585 {\an7}ALLOWING THE EEL TO SWALLOW THE MOTIONLESS FISH WHOLE, 475 00:28:39,618 --> 00:28:42,321 {\an7}WITHOUT DAMAGING ITS MOUTH. 476 00:28:42,354 --> 00:28:45,924 {\an7}A CLOSER LOOK REVEALS HOW, \h\hAT THE CRUCIAL MOMENT, 477 00:28:45,958 --> 00:28:49,261 {\an7}\h\h\h\h\h\h\hTHE EEL INHIBITS THE FLIGHT RESPONSE OF THE FISH, 478 00:28:49,294 --> 00:28:51,596 {\an7}STOPPING IT FROM ESCAPING. 479 00:28:51,630 --> 00:28:54,266 {\an7}[BUZZING] 480 00:28:56,635 --> 00:28:59,271 {\an7}\hTHE EEL MIGHT BE THE ONLY ELECTRIC FISH IN THE AMAZON 481 00:28:59,304 --> 00:29:02,541 {\an7}THAT CAN KILL WITH ELECTRICITY, 482 00:29:02,574 --> 00:29:05,210 {\an7}BUT IT’S NOT THE MOST BIZARRE. 483 00:29:10,549 --> 00:29:13,952 {\an7}THE DEEP RIVER ECOSYSTEM IS HOME TO ELECTRIC FISH 484 00:29:13,986 --> 00:29:18,657 {\an7}WITH EVEN STRANGER ADAPTATIONS. 485 00:29:18,690 --> 00:29:19,791 {\an7}WILL’S PLANNED HIS TRIP 486 00:29:19,825 --> 00:29:24,697 {\an7}\h\h\h\h\h\h\h\hTO COINCIDE WITH THEIR BREEDING SEASON. 487 00:29:24,730 --> 00:29:27,566 {\an7}THE BOTTOM OF THE AMAZON TEEMS WITH ELECTRIC FISH 488 00:29:27,599 --> 00:29:33,138 {\an7}\h\hBUSY FINDING MATES AND WARDING OFF RIVALS. 489 00:29:33,171 --> 00:29:35,407 {\an7}HE USES THE FISH FINDER 490 00:29:35,440 --> 00:29:38,176 {\an7}\h\h\h\h\hTO LISTEN IN ON THEIR SECRET WORLD. 491 00:29:42,314 --> 00:29:43,549 {\an7}Will: AS IT DROPS DOWN, 492 00:29:43,582 --> 00:29:46,819 {\an7}I CAN SUDDENLY HEAR A LOT \h\hOF ELECTRIC ACTIVITY. 493 00:29:46,852 --> 00:29:52,524 {\an7}I HEAR TWO OR THREE SPECIES \h\hAT THE SAME TIME THERE. 494 00:29:52,557 --> 00:29:54,025 {\an7}\h\h\h\h\h\h\hNarrator: ONE HUNDRED FEET BELOW, 495 00:29:54,059 --> 00:29:56,428 {\an7}\h\h\h\hMALE KNIFEFISH ARE OUT IN FULL FORCE, 496 00:29:56,461 --> 00:29:59,264 {\an7}PROTECTING THEIR TURF. 497 00:29:59,298 --> 00:30:04,737 {\an7}[ELECTRICAL FEEDBACK] 498 00:30:07,539 --> 00:30:13,412 {\an7}[BUZZING] 499 00:30:13,445 --> 00:30:17,950 {\an7}THE RIVER IS BUZZING \h\h\hWITH ACTIVITY. 500 00:30:17,983 --> 00:30:21,954 {\an7}Will: YEAH, THIS IS A VERY, VERY COOL THING TO LISTEN TO, 501 00:30:21,987 --> 00:30:25,524 {\an7}ALMOST AS BIZARRE AS THE SOUNDS OF WHALES IN THE OCEANS-- 502 00:30:25,557 --> 00:30:29,461 {\an7}JUST A SOUND YOU’D NEVER HEAR \h\h\h\h\h\h\hANYWHERE ELSE. 503 00:30:29,494 --> 00:30:30,862 {\an7}Narrator: BELOW THE SURFACE, 504 00:30:30,896 --> 00:30:35,200 {\an7}SUITORS SERENADE POTENTIAL MATES WITH THEIR ELECTRIC SONGS. 505 00:30:35,233 --> 00:30:36,901 {\an7}THE FEMALES PICK THESE UP 506 00:30:36,935 --> 00:30:40,272 {\an7}THROUGH THE ELECTRORECEPTORS \h\h\h\h\h\h\hON THEIR SKIN. 507 00:30:40,305 --> 00:30:45,944 {\an7}\h\h\h\hA MALE JAW LOCKER IS ON THE LOOKOUT FOR A FEMALE. 508 00:30:45,977 --> 00:30:49,414 {\an7}DURING THE BREEDING SEASON, \h\h\hTHE MALES’ JAWS GROW. 509 00:30:49,448 --> 00:30:52,284 {\an7}THE MORE TESTOSTERONE, \h\hTHE BIGGER THE JAW. 510 00:30:52,317 --> 00:30:55,720 {\an7}[HIGH-PITCHED TONE] 511 00:30:55,754 --> 00:30:58,590 {\an7}HIS CALL HAS ATTRACTED \h\h\h\h\hANOTHER MALE 512 00:30:58,623 --> 00:31:01,059 {\an7}WITH THE SAME GAME PLAN. 513 00:31:01,093 --> 00:31:05,531 {\an7}♪ 514 00:31:05,564 --> 00:31:08,700 {\an7}\h\h\h\hNOW HE FIGHTS FOR BREEDING RIGHTS. 515 00:31:08,734 --> 00:31:18,744 {\an7}♪ 516 00:31:18,777 --> 00:31:24,516 {\an7}♪ 517 00:31:24,549 --> 00:31:27,352 {\an7}HIS ADVERSARY HAS A THINNER JAW, 518 00:31:27,386 --> 00:31:29,521 {\an7}BUT HE’S MATCHED IN STRENGTH. 519 00:31:29,554 --> 00:31:36,394 {\an7}♪ 520 00:31:36,428 --> 00:31:41,867 {\an7}\h\h\h\h\hTHE IMPOSTER HAS HIM IN A LOCKDOWN. 521 00:31:41,900 --> 00:31:43,902 {\an7}HE’S LOST THE CHALLENGE. 522 00:31:43,935 --> 00:31:48,473 {\an7}[HIGH-PITCHED TONE] 523 00:31:48,507 --> 00:31:52,878 {\an7}HIS PENALTY IS TO CHANGE \hHIS ELECTRIC FREQUENCY, 524 00:31:52,911 --> 00:31:56,815 {\an7}GIVING THE VICTOR FREE REIN OVER THE ELECTRIC CHANNEL. 525 00:32:00,018 --> 00:32:02,120 {\an7}THE INCREASED ACTIVITY \h\h\h\h\hIN THE WATER 526 00:32:02,154 --> 00:32:04,556 {\an7}DOESN’T GO UNNOTICED. 527 00:32:09,060 --> 00:32:11,496 {\an7}\h\h\h\hELECTRIC FISH ARE NOT THE ONLY ONES 528 00:32:11,530 --> 00:32:14,967 {\an7}\h\h\h\h\h\h\h\h\hTHAT THRIVE IN THE AMAZON’S DARK WATERS. 529 00:32:15,000 --> 00:32:22,908 {\an7}♪ 530 00:32:22,941 --> 00:32:25,944 {\an7}\h\hCATFISH AND RAYS HAVE ELECTRORECEPTORS 531 00:32:25,977 --> 00:32:27,412 {\an7}WHICH SENSE ELECTRIC FIELDS 532 00:32:27,446 --> 00:32:30,482 {\an7}CREATED BY MUSCLE MOVEMENTS \h\h\h\h\h\hIN THEIR PREY, 533 00:32:30,515 --> 00:32:33,585 {\an7}ALLOWING THEM TO HUNT \h\h\h\hIN THE DARK. 534 00:32:39,391 --> 00:32:42,895 {\an7}THE ELECTRIC FISH ARE SO FOCUSED ON FINDING A MATE, 535 00:32:42,928 --> 00:32:47,800 {\an7}THEY BECOME EASY TARGET \hFOR HUNGRY PREDATORS. 536 00:32:47,833 --> 00:32:50,369 {\an7}COURTSHIP COULD COME AT A COST. 537 00:32:50,402 --> 00:33:00,846 {\an7}♪ 538 00:33:00,879 --> 00:33:04,049 {\an7}\h\h\h\h\h\h\h\hTHIS TIME, THE ELECTRIC FISH ESCAPES. 539 00:33:04,082 --> 00:33:08,386 {\an7}LUCKY FOR HIM, CATFISH DON’T \h\h\hNEED TO EAT EVERY DAY. 540 00:33:13,692 --> 00:33:17,296 {\an7}WILL HAS SCOURED THE JUNGLE \hSTREAMS AND DEEP RIVERS, 541 00:33:17,329 --> 00:33:21,133 {\an7}BUT THERE’S STILL ONE MORE ECOSYSTEM LEFT TO EXPLORE. 542 00:33:22,701 --> 00:33:27,372 {\an7}THE AMAZON’S GIANT FLOODPLAIN IS AN ELECTRIC FISH HOTSPOT. 543 00:33:27,405 --> 00:33:30,108 {\an7}Will: THIS TIME OF THE YEAR \hIN THE AMAZON FLOODPLAIN, 544 00:33:30,141 --> 00:33:32,577 {\an7}\h\h\hTHE FLOATING MEADOWS REACH THEIR MAXIMUM EXTENT, 545 00:33:32,611 --> 00:33:34,713 {\an7}\hAND THAT’S WHEN THE ELECTRIC FISH 546 00:33:34,746 --> 00:33:37,082 {\an7}REACH THEIR HIGHEST DENSITIES. 547 00:33:40,385 --> 00:33:42,621 {\an7}Narrator: FLOATING RAFTS \h\h\h\h\h\hOF PLANT LIFE 548 00:33:42,654 --> 00:33:44,756 {\an7}\h\h\hBORDER THE EDGE OF THE MAIN CHANNEL. 549 00:33:44,789 --> 00:33:48,359 {\an7}[CHIRPING] 550 00:33:48,393 --> 00:33:53,331 {\an7}THEY PROVIDE A HIDEOUT \h\h\h\hFOR SMALL FISH. 551 00:33:53,365 --> 00:33:56,468 {\an7}THE FLOODPLAIN IS HOME TO SOME OF THE MOST FEROCIOUS PREDATORS 552 00:33:56,501 --> 00:33:58,370 {\an7}IN THE AMAZON. 553 00:34:03,241 --> 00:34:06,244 {\an7}GIANT RIVER OTTERS \h\hHUNT IN PACKS. 554 00:34:06,278 --> 00:34:08,347 {\an7}WOLVES OF THE RIVER. 555 00:34:08,380 --> 00:34:12,317 {\an7}WHEN THEY ARE ON THE HUNT, \h\h\h\h\hNOTHING IS SAFE, 556 00:34:12,350 --> 00:34:15,854 {\an7}\h\hNOT EVEN THE AMAZON’S NOTORIOUS SUPER PREDATOR. 557 00:34:19,824 --> 00:34:24,862 {\an7}PIRANHAS CAN RIP PREY TO SHREDS IN SECONDS, 558 00:34:24,896 --> 00:34:29,167 {\an7}\hBUT THEY’RE NO MATCH FOR HUNGRY GIANT RIVER OTTERS. 559 00:34:29,200 --> 00:34:36,741 {\an7}♪ 560 00:34:36,775 --> 00:34:38,210 {\an7}[OTTER BARKS] 561 00:34:38,243 --> 00:34:49,421 {\an7}♪ 562 00:34:55,827 --> 00:34:57,896 {\an7}OUT OF THE PREDATORS’ REACH, 563 00:34:57,929 --> 00:35:01,466 {\an7}\h\h\h\h\h\hTHE MEADOWS ARE AN ELECTRIC FISH SANCTUARY. 564 00:35:01,499 --> 00:35:04,202 {\an7}WITH SO MANY OF THEM \h\h\h\hIN ONE PLACE, 565 00:35:04,235 --> 00:35:06,437 {\an7}THE CHANCE OF FINDING \h\h\h\hA NEW SPECIES 566 00:35:06,471 --> 00:35:09,140 {\an7}BECOMES A REAL POSSIBILITY. 567 00:35:10,809 --> 00:35:13,979 {\an7}\hWill: THERE’S NO HABITAT LIKE THIS ANYWHERE ELSE IN THE WORLD. 568 00:35:14,012 --> 00:35:16,882 {\an7}THE ENTIRE RAFT OF VEGETATION 569 00:35:16,915 --> 00:35:21,086 {\an7}\h\hRISES UP AND DOWN WITH THE FLOODWATERS. 570 00:35:21,119 --> 00:35:23,555 {\an7}\hTHE ROOTS OF THESE PLANTS JUST DANGLE INTO THE WATER 571 00:35:23,588 --> 00:35:24,923 {\an7}AND EXTRACT NUTRIENTS \h\hOUT OF THE WATER 572 00:35:24,956 --> 00:35:26,958 {\an7}INSTEAD OF FROM THE SOIL. 573 00:35:26,992 --> 00:35:29,361 {\an7}AND THEY ARE ABSOLUTELY \h\h\hWONDERFUL PLACES 574 00:35:29,394 --> 00:35:30,695 {\an7}TO FIND ELECTRIC FISH. 575 00:35:30,729 --> 00:35:33,632 {\an7}THERE ARE ENTIRE SPECIALIZED \h\hCOMMUNITIES OF KNIFEFISH 576 00:35:33,665 --> 00:35:35,066 {\an7}THAT LIVE HERE, 577 00:35:35,100 --> 00:35:37,502 {\an7}AND, UM, THERE’S AN ENORMOUS \h\h\h\hAMOUNT OF DIVERSITY, 578 00:35:37,535 --> 00:35:42,607 {\an7}\h\h\h\hINCLUDING MANY SPECIES THAT ARE YET TO BE DISCOVERED. 579 00:35:42,641 --> 00:35:44,042 {\an7}\h\h\h\h\h\h\h\h\hNarrator: IT’S IN MEADOWS LIKE THESE 580 00:35:44,075 --> 00:35:46,344 {\an7}\h\h\h\h\hTHAT WILL HAS FOUND MANY OF HIS NEW DISCOVERIES. 581 00:35:46,378 --> 00:35:53,218 {\an7}[CLICKS PULSING] 582 00:35:53,251 --> 00:35:56,287 {\an7}SOME OF THE ELECTRIC WAVE FORMS ARE SO DISTINCT, 583 00:35:56,321 --> 00:35:57,622 {\an7}\h\h\h\h\hHE CAN TELL IF IT’S SOMETHING NEW 584 00:35:57,656 --> 00:35:59,091 {\an7}JUST BY LISTENING. 585 00:35:59,124 --> 00:36:03,395 {\an7}[CLICKS PULSING] 586 00:36:03,428 --> 00:36:09,935 {\an7}Will: I CAN HEAR AT LEAST THREE DIFFERENT SPECIES JUST HERE, 587 00:36:09,968 --> 00:36:12,103 {\an7}BUT IF WE MOVE THE ELECTRODE \h\hOUT INTO THE OPEN WATER, 588 00:36:12,137 --> 00:36:13,205 {\an7}THERE’S NOTHING. 589 00:36:13,238 --> 00:36:15,373 {\an7}\hTHEY’RE ALL INSIDE THE FLOATING MEADOW. 590 00:36:15,407 --> 00:36:17,976 {\an7}[CLICKS PULSING] 591 00:36:18,009 --> 00:36:20,078 {\an7}Narrator: THE FISH USE DIFFERENT FREQUENCIES, 592 00:36:20,111 --> 00:36:22,146 {\an7}LIKE RADIO STATIONS. 593 00:36:22,180 --> 00:36:24,349 {\an7}\h\h\hTHIS ALLOWS THEM TO IDENTIFY EACH OTHER 594 00:36:24,382 --> 00:36:25,450 {\an7}AND AVOID INTERFERENCE. 595 00:36:25,483 --> 00:36:30,254 {\an7}[CLICKS PULSING] 596 00:36:30,288 --> 00:36:33,158 {\an7}\h\h\hWILL RECOGNIZES MOST OF THE SIGNALS, 597 00:36:33,191 --> 00:36:36,428 {\an7}BUT THERE ARE ONE OR TWO \hHE HASN’T HEARD BEFORE. 598 00:36:36,461 --> 00:36:41,766 {\an7}[CLICKS PULSING] 599 00:36:47,372 --> 00:36:50,976 {\an7}Will: OOH, SOMETHING \h\hMOVING IN THERE. 600 00:36:51,009 --> 00:36:53,645 {\an7}HE’S IN THERE. YEP. 601 00:36:53,678 --> 00:36:56,548 {\an7}\h\hAH, FANTASTIC. THIS IS A BIG ONE. 602 00:36:56,581 --> 00:36:58,016 {\an7}OH, YES, THIS IS A, 603 00:36:58,049 --> 00:37:02,320 {\an7}THIS IS A VERY INTERESTING \h\h\h\h\h\hELECTRIC FISH. 604 00:37:02,353 --> 00:37:06,757 {\an7}LIKE THE ELECTRIC EEL, \h\h\hAN AIR BREATHER. 605 00:37:06,791 --> 00:37:08,226 {\an7}ACTUALLY FROM THE SAME FAMILY. 606 00:37:08,259 --> 00:37:10,128 {\an7}WHOA, HE’S GOING TO ESCAPE. 607 00:37:10,161 --> 00:37:13,064 {\an7}OH. 608 00:37:13,098 --> 00:37:14,566 {\an7}HERE WE GO. 609 00:37:14,599 --> 00:37:15,967 {\an7}MAGNIFICENT SPECIMEN. 610 00:37:16,000 --> 00:37:20,471 {\an7}ONE OF THE BANDED KNIFEFISHES. 611 00:37:20,505 --> 00:37:22,674 {\an7}Narrator: WILL BAGS IT, READY TO RETURN TO CAMP 612 00:37:22,707 --> 00:37:25,243 {\an7}WHERE HE CAN STUDY IT FURTHER. 613 00:37:25,276 --> 00:37:27,378 {\an7}Will: HE’S A LOVELY SPECIMEN. 614 00:37:27,412 --> 00:37:29,381 {\an7}I SAY HE. IT COULD BE A SHE. 615 00:37:29,414 --> 00:37:34,486 {\an7}[CLICKS PULSING] 616 00:37:34,519 --> 00:37:36,688 {\an7}GROUND ZERO RIGHT HERE. 617 00:37:36,721 --> 00:37:37,989 {\an7}OK. 618 00:37:44,696 --> 00:37:48,967 {\an7}Narrator: THE MEADOW IS PACKED FULL OF ELECTRIC FISH. 619 00:37:49,000 --> 00:37:52,770 {\an7}\h\h\hWILL CATCHES AS MANY DIFFERENT TYPES AS HE CAN. 620 00:37:55,573 --> 00:37:58,276 {\an7}WITH SO MANY DIFFERENT \h\h\h\h\h\hVARIATIONS, 621 00:37:58,309 --> 00:38:01,612 {\an7}\h\h\h\hTHE ONLY DEFINITIVE WAY TO TELL IF HE HAS A NEW SPECIES 622 00:38:01,646 --> 00:38:04,782 {\an7}\h\h\h\h\h\hIS TO RECORD THEIR ELECTRIC WAVEFORMS. 623 00:38:04,816 --> 00:38:09,788 {\an7}[THUNDER] 624 00:38:13,424 --> 00:38:15,760 {\an7}WILL’S GOT A SCHEDULE PLANNED, 625 00:38:15,794 --> 00:38:21,266 {\an7}BUT THE AMAZON PLAYS \h\hBY ITS OWN RULES. 626 00:38:21,299 --> 00:38:25,537 {\an7}Will: STORMS ARE A REAL WORRY. 627 00:38:25,570 --> 00:38:28,506 {\an7}ONE OF THE MOST DANGEROUS THINGS IN THE AMAZON 628 00:38:28,540 --> 00:38:31,510 {\an7}\h\h\hIS THE RISK OF A TREE FALLING ON YOU IN A STORM. 629 00:38:43,254 --> 00:38:46,958 {\an7}\h\h\h\h\hA GIANT TREE JUST CRASHED DOWN INTO THE RIVER 630 00:38:46,991 --> 00:38:50,895 {\an7}IN A PLACE WHERE WE HAD JUST \h\h\hPASSED SECONDS EARLIER. 631 00:38:50,929 --> 00:38:52,464 {\an7}ONE DAY YOUR NUMBER’S \h\h\hGONNA COME UP, 632 00:38:52,497 --> 00:38:56,234 {\an7}BUT WE WERE VERY CLOSE TO \hGETTING IT RIGHT THEN. 633 00:38:56,267 --> 00:38:57,935 {\an7}THAT WAS SCARY. 634 00:39:00,471 --> 00:39:10,014 {\an7}♪ 635 00:39:10,048 --> 00:39:16,821 {\an7}♪ 636 00:39:16,855 --> 00:39:19,458 {\an7}\h\h\h\h\hWill: THE STORM’S REALLY MESSED UP THE CAMP. 637 00:39:19,490 --> 00:39:23,027 {\an7}[BOOTS SLOSHING] 638 00:39:29,734 --> 00:39:31,569 {\an7}Narrator: WILL STARTS TO ANALYZE HIS CATCH 639 00:39:31,603 --> 00:39:34,106 {\an7}TO SEE IF HE’S FOUND \h\h\hSOMETHING NEW. 640 00:39:38,209 --> 00:39:39,811 {\an7}EVERY SPECIES HE FINDS 641 00:39:39,844 --> 00:39:42,980 {\an7}\h\h\h\hADDS TO THE PUZZLE OF ELECTRIC FISH RESEARCH. 642 00:39:46,417 --> 00:39:48,920 {\an7}\h\h\h\h\h\h\h\h\h\h\h\hWill: YEAH, THAT WOULD MAKE SENSE. 643 00:39:50,021 --> 00:39:53,925 {\an7}[INSECTS BUZZING] 644 00:39:53,958 --> 00:39:55,126 {\an7}GOT IT. 645 00:39:59,030 --> 00:40:02,367 {\an7}Narrator: WILL TURNS A COOLER \h\h\h\hINTO A MINI AQUARIUM 646 00:40:02,400 --> 00:40:04,736 {\an7}\h\h\h\h\h\h\h\h\hTO RECORD THE ELECTRIC FISH SIGNALS. 647 00:40:04,769 --> 00:40:07,739 {\an7}[CLICKS PULSING] 648 00:40:07,772 --> 00:40:10,908 {\an7}WHAT HE FINDS IS SURPRISING. 649 00:40:10,942 --> 00:40:15,146 {\an7}ONE OF THE WAVEFORMS IS UNLIKE ANYTHING HE HAS EVER SEEN. 650 00:40:15,179 --> 00:40:16,947 {\an7}\h\h\hWill: AND THIS SPECIES, WHICH I THINK IS UNDESCRIBED, 651 00:40:16,981 --> 00:40:18,216 {\an7}I’VE NEVER SEEN IT BEFORE, 652 00:40:18,249 --> 00:40:21,786 {\an7}HAS A VERY DISTINCTIVE WAVEFORM WITH FOUR PHASES. 653 00:40:21,819 --> 00:40:24,588 {\an7}\hIT’S SHORTER, SO IT SOUNDS LIKE IT’S A HIGHER FREQUENCY. 654 00:40:24,622 --> 00:40:26,591 {\an7}\h\h\h\h\h\h\h\h\hNarrator: IT’S AN EXCITING DISCOVERY 655 00:40:26,624 --> 00:40:30,161 {\an7}\hAND COULD BE A VALUABLE ADDITION TO HIS RESEARCH. 656 00:40:30,194 --> 00:40:31,929 {\an7}IF THIS IS A NEW SPECIES, 657 00:40:31,963 --> 00:40:34,966 {\an7}WILL CAN FORMALLY NAME IT \hAND ADD IT TO HIS LIST, 658 00:40:34,999 --> 00:40:39,370 {\an7}ALONG WITH THE 50 OTHERS \h\hTHAT HE’S DESCRIBED. 659 00:40:39,404 --> 00:40:42,040 {\an7}\hBUT NOW WILL HAS BIGGER FISH TO FRY. 660 00:40:45,777 --> 00:40:47,579 {\an7}\h\h\h\h\h\h\h\h\h\h\hWill: HERE’S THE MOMENT OF TRUTH. 661 00:40:47,612 --> 00:40:49,848 {\an7}424 VOLTS. 662 00:40:49,881 --> 00:40:53,218 {\an7}424 VOLTS COMING FROM A FISH. 663 00:40:53,251 --> 00:40:55,653 {\an7}THAT’S PRETTY AMAZING. 664 00:40:55,687 --> 00:40:59,691 {\an7}\h\h\h\h\hTHAT’S ALMOST FOUR TIMES THE VOLTAGE 665 00:40:59,724 --> 00:41:03,161 {\an7}OF A MAINS ELECTRICAL OUTLET \h\h\h\h\h\h\h\h\hIN THE U.S. 666 00:41:03,194 --> 00:41:06,464 {\an7}IT JUST NEVER CEASES TO AMAZE ME 667 00:41:06,497 --> 00:41:09,900 {\an7}THAT A FISH CAN GENERATE \h\h\hAN ELECTRIC VOLTAGE 668 00:41:09,934 --> 00:41:11,335 {\an7}THAT’S THAT HIGH. 669 00:41:13,938 --> 00:41:16,207 {\an7}\h\h\h\h\h\h\h\h\h\h\hNarrator: WHEN THE ELECTRIC EEL ATTACKS, 670 00:41:16,240 --> 00:41:19,877 {\an7}IT BLASTS OUT A SERIES OF HIGH-VOLTAGE PULSES. 671 00:41:19,911 --> 00:41:23,481 {\an7}AROUND 400 PER SECOND. 672 00:41:23,514 --> 00:41:27,284 {\an7}THEY TRAVEL THROUGH WATER \h\h\h\hINSTANTANEOUSLY. 673 00:41:27,318 --> 00:41:33,491 {\an7}ANYTHING WITHIN RANGE WILL RECEIVE AN ELECTRIC SHOCK. 674 00:41:33,524 --> 00:41:37,028 {\an7}WILL SETS UP AN L.E.D. LIGHT \hHOOKED UP TO TWO ELECTRODES 675 00:41:37,061 --> 00:41:41,132 {\an7}\h\h\hTO VISUALLY SHOW HOW MUCH ELECTRICITY THE EEL GENERATES. 676 00:41:41,165 --> 00:41:44,235 {\an7}[CLICKING] 677 00:41:44,268 --> 00:41:47,972 {\an7}BUT EVEN THE WORLD’S LEADING \h\hEXPERTS ON ELECTRIC FISH 678 00:41:48,006 --> 00:41:50,509 {\an7}CAN GET SOME NASTY SURPRISES. 679 00:41:50,541 --> 00:41:53,577 {\an7}Will: AHH! DAMN. 680 00:41:53,611 --> 00:41:56,747 {\an7}GOT SHOCKED BY THE BLOODY EEL. 681 00:41:56,781 --> 00:41:59,784 {\an7}OH! 682 00:41:59,817 --> 00:42:01,218 {\an7}Narrator: THE EEL’S SHOCK 683 00:42:01,252 --> 00:42:02,854 {\an7}\h\h\hIS STRONG ENOUGH TO GIVE WILL A FRIGHT, 684 00:42:02,887 --> 00:42:06,090 {\an7}BUT DOESN’T LAST LONG ENOUGH \h\hTO HEAT A CUP OF COFFEE. 685 00:42:06,124 --> 00:42:08,860 {\an7}Will: HE MUST HAVE MADE A LUNGE TOWARDS THE TWO WIRES, 686 00:42:08,893 --> 00:42:10,228 {\an7}THE TWO ELECTRODES IN THE WATER. 687 00:42:10,261 --> 00:42:13,097 {\an7}\h\h\h\h\h\h\hAND I JUST GOT THE FULL BRUNT OF THE SHOCK. 688 00:42:13,131 --> 00:42:15,700 {\an7}I DROPPED THE CIRCUIT BOARD, \h\h\h\h\hIT FELL IN THE MUD, 689 00:42:15,733 --> 00:42:18,869 {\an7}\hAND I WAS OUT OF IT FOR A COUPLE SECONDS. 690 00:42:18,903 --> 00:42:22,440 {\an7}THE THING ABOUT PAIN IS THAT IT’S THE ANTICIPATION OF PAIN 691 00:42:22,473 --> 00:42:23,774 {\an7}THAT’S THE WORST THING, 692 00:42:23,808 --> 00:42:26,944 {\an7}SO I ALWAYS TRY VERY HARD TO AVOID GETTING SHOCKED. 693 00:42:26,978 --> 00:42:30,048 {\an7}\h\h\h\h\h\h\hI REALLY, I REALLY DON’T LIKE IT. 694 00:42:30,081 --> 00:42:31,849 {\an7}Narrator: NOW THAT WILL \h\hHAS AN ELECTRIC EEL 695 00:42:31,883 --> 00:42:33,852 {\an7}AND A SMALL ELECTRIC FISH, 696 00:42:33,885 --> 00:42:35,387 {\an7}HE HAS THE CHANCE TO FIND OUT 697 00:42:35,420 --> 00:42:38,356 {\an7}HOW THE TWO INTERACT \h\hWITH EACH OTHER. 698 00:42:41,592 --> 00:42:43,928 {\an7}\h\h\h\h\h\h\hHE WANTS TO SEE WHAT’S GOING ON IN THE WATER 699 00:42:43,961 --> 00:42:47,498 {\an7}\h\h\hWHILE THE ELECTRIC EEL IS HUNTING AN ELECTRIC FISH. 700 00:42:47,532 --> 00:42:49,067 {\an7}HE WAITS FOR NIGHTFALL. 701 00:42:49,100 --> 00:42:56,107 {\an7}♪ 702 00:42:56,140 --> 00:43:01,912 {\an7}HE’S PUT A SMALL KNIFEFISH \h\h\h\h\hIN WITH THE EEL. 703 00:43:01,946 --> 00:43:03,147 {\an7}Will: THERE’S THE EEL’S PULSING. 704 00:43:03,181 --> 00:43:05,250 {\an7}[CLICKS PULSING] 705 00:43:05,283 --> 00:43:06,484 {\an7}THE KNIFEFISH PULSING. 706 00:43:06,517 --> 00:43:10,254 {\an7}[CLICKS PULSING] 707 00:43:10,288 --> 00:43:13,091 {\an7}\hNarrator: AS WILL LISTENS TO THE SOUNDS OF THE HUNT, 708 00:43:13,124 --> 00:43:15,727 {\an7}\h\h\h\h\h\hHE NOTICES SOME UNUSUAL BEHAVIOR. 709 00:43:15,760 --> 00:43:19,097 {\an7}Will: THE PREY FISH IS ACTUALLY SWITCHING SIGNAL ON AND OFF. 710 00:43:19,130 --> 00:43:21,232 {\an7}\hNOW, FOR EXAMPLE, HE’S SWITCHED OFF. 711 00:43:21,265 --> 00:43:23,000 {\an7}\h\hI HAVE THE ELECTRODE RIGHT NEAR THE PREY FISH, 712 00:43:23,034 --> 00:43:26,271 {\an7}AND IT’S NOT GENERATING \h\hANYTHING RIGHT NOW. 713 00:43:26,304 --> 00:43:28,173 {\an7}\h\h\h\h\h\h\hNarrator: AS THE EEL COMES CLOSE, 714 00:43:28,206 --> 00:43:31,843 {\an7}THE PREY SWITCHES OFF \hITS ELECTRIC FIELD. 715 00:43:31,876 --> 00:43:33,444 {\an7}IT SENSES DANGER 716 00:43:33,478 --> 00:43:37,048 {\an7}AND CAN HIDE FROM THE EEL BY GOING UNDER THE RADAR. 717 00:43:40,952 --> 00:43:43,922 {\an7}EVEN IN THE WIDER SURROUNDINGS OF ITS NATURAL HABITAT, 718 00:43:43,955 --> 00:43:46,391 {\an7}THE EEL HAS A COUNTERMEASURE. 719 00:43:50,228 --> 00:43:53,531 {\an7}WHEN PREY STOPS SENDING OUT \h\h\hELECTRICAL IMPULSES, 720 00:43:53,564 --> 00:43:55,566 {\an7}IT’S INVISIBLE TO THE EEL. 721 00:43:58,102 --> 00:44:00,137 {\an7}[CLICKING] 722 00:44:00,171 --> 00:44:03,207 {\an7}\hBUT BY SENDING OUT A SMALL DOUBLE SHOCK, 723 00:44:03,241 --> 00:44:06,077 {\an7}\h\h\h\hTHE EEL CAN TRIGGER THE PREY’S NERVOUS SYSTEM, 724 00:44:06,110 --> 00:44:07,945 {\an7}MAKING IT TWITCH AND REVEAL ITSELF 725 00:44:07,979 --> 00:44:10,715 {\an7}THROUGH VIBRATIONS IN THE WATER. 726 00:44:12,049 --> 00:44:16,053 {\an7}[CLICKING] 727 00:44:16,087 --> 00:44:18,456 {\an7}THE EEL USES ITS SUPER POWER 728 00:44:18,489 --> 00:44:20,758 {\an7}\h\h\h\hTO REMOTELY CONTROL ITS PREY’S NERVOUS SYSTEM, 729 00:44:20,791 --> 00:44:22,926 {\an7}FORCING IT TO GIVE UP \h\h\hITS POSITION... 730 00:44:22,960 --> 00:44:26,464 {\an7}♪ 731 00:44:26,497 --> 00:44:29,200 {\an7}READY FOR AN EEL TAKEDOWN. 732 00:44:29,233 --> 00:44:39,643 {\an7}♪ 733 00:44:39,677 --> 00:44:42,914 {\an7}\h\hIF YOU THOUGHT THERE WAS NOWHERE WILD LEFT TO EXPLORE, 734 00:44:42,947 --> 00:44:45,817 {\an7}THINK AGAIN. 735 00:44:45,850 --> 00:44:48,219 {\an7}HERE IN THE DEPTHS \h\hOF THE AMAZON, 736 00:44:48,252 --> 00:44:51,756 {\an7}WILL HAS UNLOCKED AN INCREDIBLE \h\h\hWORLD OF ELECTRIC POWERS 737 00:44:51,789 --> 00:44:55,860 {\an7}AND HIGH-TECH COMMUNICATION. 738 00:44:55,893 --> 00:44:59,463 {\an7}HE’S POTENTIALLY FOUND \h\h\h\hA NEW SPECIES, 739 00:44:59,497 --> 00:45:04,168 {\an7}WITNESSED RARE ELECTRIC EEL \h\h\h\h\hHUNTING BEHAVIOR, 740 00:45:04,202 --> 00:45:09,007 {\an7}\hAND COLLECTED INVALUABLE ELECTRIC SIGNAL RECORDINGS. 741 00:45:09,040 --> 00:45:13,144 {\an7}\h\h\h\h\hWill: I THINK THE, THE THING THAT DRIVES ME MOST 742 00:45:13,177 --> 00:45:16,414 {\an7}IS UNDERSTANDING THE COMPLEXITY, 743 00:45:16,447 --> 00:45:21,652 {\an7}MAKING SENSE OF WHAT INITIALLY \h\h\h\hIS JUST ALMOST CHAOTIC, 744 00:45:21,686 --> 00:45:24,022 {\an7}BUT WITH TIME AND PATIENCE 745 00:45:24,055 --> 00:45:25,456 {\an7}\h\hAND THE COLLECTION OF MORE AND MORE DATA, 746 00:45:25,489 --> 00:45:27,624 {\an7}EVENTUALLY YOU START \h\hTO SEE PATTERNS. 747 00:45:27,658 --> 00:45:29,760 {\an7}AND THE LONGER I’VE BEEN \hSTUDYING ELECTRIC FISH, 748 00:45:29,794 --> 00:45:33,097 {\an7}THE MORE I’VE BEGUN TO UNRAVEL \h\h\h\h\h\h\hTHIS COMPLEXITY, 749 00:45:33,130 --> 00:45:35,699 {\an7}\h\h\h\h\h\h\hAND THAT’S TREMENDOUSLY SATISFYING. 750 00:45:35,733 --> 00:45:37,702 {\an7}\h\h\h\h\h\h\h\h\h\h\hNarrator: EVERY TRIP INTO THE RAINFOREST 751 00:45:37,735 --> 00:45:41,105 {\an7}\hIS AN ADVENTURE INTO THE UNKNOWN, 752 00:45:41,138 --> 00:45:45,275 {\an7}INTO A WORLD THAT WE ARE ONLY JUST STARTING TO UNDERSTAND. 753 00:45:48,145 --> 00:45:52,816 {\an7}WHO KNOWS HOW MANY MORE SECRETS \hLIE IN THIS ELECTRIC AMAZON, 754 00:45:52,850 --> 00:45:55,920 {\an7}WAITING TO BE DISCOVERED? 755 00:45:55,953 --> 00:45:59,390 {\an7}♪