1 00:00:13,240 --> 00:00:16,040 NARRATOR: Our weather is wilder... 2 00:00:18,040 --> 00:00:19,400 ..fiercer... 3 00:00:21,040 --> 00:00:23,040 ..more unpredictable... 4 00:00:25,040 --> 00:00:27,040 ..than ever before. 5 00:00:28,040 --> 00:00:30,040 REPORTER 1: Rare red weather warnings 6 00:00:30,040 --> 00:00:32,400 meaning there's a potential danger to life. 7 00:00:32,400 --> 00:00:35,560 REPORTER 2: Such weather is more frequent and intense. 8 00:00:35,560 --> 00:00:38,040 REPORTER 3: I think we had this conversation in our newsroom 9 00:00:38,040 --> 00:00:41,040 when they were evacuating all the people. 10 00:00:41,040 --> 00:00:42,560 What about the animals? 11 00:00:47,040 --> 00:00:49,040 For the first time... 12 00:00:51,040 --> 00:00:54,040 ..we see the planet's most extreme weather... 13 00:00:55,880 --> 00:00:57,400 ..through their eyes. 14 00:01:05,240 --> 00:01:08,040 When nature turns against them... 15 00:01:09,040 --> 00:01:11,040 ..they're not just enduring... 16 00:01:13,560 --> 00:01:16,040 ..they are fighting back... 17 00:01:19,040 --> 00:01:21,040 ..in remarkable ways. 18 00:01:24,720 --> 00:01:26,040 The bigger the storm... 19 00:01:29,040 --> 00:01:32,040 ..the greater the heroes. 20 00:01:32,040 --> 00:01:34,040 GROWLS, ELEPHANT TRUMPETS 21 00:01:34,040 --> 00:01:35,040 These animals are... 22 00:01:36,400 --> 00:01:39,040 ..a force of nature. 23 00:01:58,400 --> 00:02:01,040 REPORTER 1: The monster hurricane now at category 5 strength, 24 00:02:01,040 --> 00:02:03,040 shattering records. 25 00:02:03,040 --> 00:02:06,040 REPORTER 2: We still are tracking a monster of a hurricane 26 00:02:06,040 --> 00:02:09,040 as it continues to move through the Caribbean. 27 00:02:10,040 --> 00:02:12,240 THUNDER RUMBLES 28 00:02:12,240 --> 00:02:14,040 REPORTER 3: Warmer ocean temperatures 29 00:02:14,040 --> 00:02:17,040 are already having immediate effects on your daily life. 30 00:02:17,040 --> 00:02:19,040 There's always been hurricanes, yeah, 31 00:02:19,040 --> 00:02:20,080 but they're really strong these days. 32 00:02:20,080 --> 00:02:22,040 They're really damaging. 33 00:02:26,040 --> 00:02:31,040 This is the earliest category 5 hurricane ever recorded. 34 00:02:49,040 --> 00:02:55,040 Every May, Caribbean flamingos flock to the coast of Mexico. 35 00:03:04,040 --> 00:03:09,720 45,000 have come here to breed and raise their young. 36 00:03:20,400 --> 00:03:22,560 This four-year-old female 37 00:03:22,560 --> 00:03:25,240 has completed her mud nest in good time... 38 00:03:28,040 --> 00:03:31,040 ..ready to bring up her first chick. 39 00:03:35,080 --> 00:03:41,040 Out here, the young family will be safer from crocodiles 40 00:03:41,040 --> 00:03:44,040 lurking in the surrounding mangroves. 41 00:03:50,040 --> 00:03:54,720 But on the ocean's edge... she has her work cut out... 42 00:04:00,040 --> 00:04:05,040 ..keeping her half-a-metre-tall nest high and dry... 43 00:04:11,080 --> 00:04:16,040 ..even if it means stealing mud from her neighbour. 44 00:04:21,880 --> 00:04:24,040 Her preparations have paid off... 45 00:04:27,040 --> 00:04:29,040 ..and just in time. 46 00:04:51,560 --> 00:04:54,240 For the first ten days of his life, 47 00:04:54,240 --> 00:04:58,040 her helpless chick is confined to the nest. 48 00:05:06,040 --> 00:05:10,040 Time enough to grow up and find his legs. 49 00:05:13,040 --> 00:05:16,040 Or so it used to be. 50 00:05:19,040 --> 00:05:24,040 With today's warming seas, trouble is brewing. 51 00:05:31,040 --> 00:05:33,720 Thousands of miles out in the Atlantic... 52 00:05:38,040 --> 00:05:41,040 ..record-breaking temperatures... 53 00:05:41,040 --> 00:05:44,240 lead to rapid water evaporation... 54 00:05:47,040 --> 00:05:51,040 ..forming the largest and deadliest weather event on the planet... 55 00:05:55,040 --> 00:05:58,040 ..a category 5 hurricane... 56 00:06:03,040 --> 00:06:06,040 ..heading straight for the flamingos 57 00:06:06,040 --> 00:06:10,040 at the height of their breeding season. 58 00:06:22,040 --> 00:06:27,720 First in its path... a Caribbean love island. 59 00:06:30,040 --> 00:06:32,040 In blissful ignorance... 60 00:06:34,040 --> 00:06:39,040 ..an amorous male anole lizard shows off his wares... 61 00:06:41,040 --> 00:06:43,040 ..by flashing his dewlap... 62 00:06:48,040 --> 00:06:54,040 ..a colourful flap of skin to catch the female gaze. 63 00:06:57,040 --> 00:07:00,560 But the male has competition. 64 00:07:05,040 --> 00:07:08,040 Now... who to choose? 65 00:07:18,040 --> 00:07:22,040 He'll have to face off his rival. 66 00:07:29,040 --> 00:07:32,040 And she approves. 67 00:07:41,240 --> 00:07:44,040 The weather then kills the mood. 68 00:07:53,040 --> 00:07:54,040 The hurricane... 69 00:07:55,720 --> 00:07:57,040 ..has arrived. 70 00:07:59,040 --> 00:08:01,040 THUNDER RUMBLES 71 00:08:06,040 --> 00:08:09,040 THUNDER RUMBLES 72 00:08:13,400 --> 00:08:16,040 These monster storms 73 00:08:16,040 --> 00:08:22,040 now reach their maximum strength weeks earlier than ever before. 74 00:08:33,720 --> 00:08:36,240 Those that can... seek shelter. 75 00:08:44,880 --> 00:08:49,040 Others cling on for dear life. 76 00:09:01,080 --> 00:09:03,240 THUNDER RUMBLES 77 00:09:04,240 --> 00:09:07,240 THUNDER RUMBLES 78 00:09:13,040 --> 00:09:17,040 Wind speeds now exceed 160 miles per hour. 79 00:09:22,040 --> 00:09:26,040 To survive, the lizards must hold tight... 80 00:09:27,560 --> 00:09:30,040 ..or be swept out to sea. 81 00:09:48,040 --> 00:09:52,040 But there's something special about this female... 82 00:09:57,720 --> 00:10:00,040 ..and her lovestruck partner. 83 00:10:11,040 --> 00:10:13,040 Their survival... 84 00:10:15,040 --> 00:10:18,560 ..is won by a fingertip. 85 00:10:36,040 --> 00:10:38,040 REPORTER 1: Human activity is producing 86 00:10:38,040 --> 00:10:43,040 five atomic bombs' worth of heat every second. 87 00:10:43,040 --> 00:10:47,040 Most of that heat is absorbed by the Earth's oceans. 88 00:10:52,040 --> 00:10:57,880 This extra energy has doubled the number of severe winter storms 89 00:10:57,880 --> 00:11:02,040 hitting Northern California in the last 30 years. 90 00:11:05,040 --> 00:11:08,560 REPORTER 2: Over the open ocean, we have 30- to 50-foot waves. 91 00:11:08,560 --> 00:11:11,040 That means very rough surf expected along the west coast. 92 00:11:11,040 --> 00:11:13,040 SEA OTTER SQUEAKS 93 00:11:13,040 --> 00:11:15,040 REPORTER 3: The California sea otters 94 00:11:15,040 --> 00:11:18,080 are losing ground in their struggle to survive. 95 00:11:24,040 --> 00:11:26,040 SEA OTTER SQUEAKS 96 00:11:26,040 --> 00:11:30,040 The storm is becoming very strong very rapidly, 97 00:11:30,040 --> 00:11:33,040 and when you get rapid intensification like that... 98 00:11:34,040 --> 00:11:35,720 ..bad things happen. 99 00:12:01,040 --> 00:12:05,040 A sea otter mum and her days-old pup. 100 00:12:11,040 --> 00:12:13,040 He can't yet swim... 101 00:12:14,040 --> 00:12:18,040 ..so relies on Mum for everything. 102 00:12:26,040 --> 00:12:30,040 PUP SQUEAKS 103 00:12:30,040 --> 00:12:32,040 Blowing into his coat, 104 00:12:32,040 --> 00:12:35,560 she traps pockets of air between his hairs... 105 00:12:39,040 --> 00:12:42,400 ..inflating his very own life jacket. 106 00:12:48,040 --> 00:12:52,040 Sea otters raise their pups in the middle of giant kelp forests. 107 00:12:55,040 --> 00:13:00,040 This thick tangle of seaweed helps dampen waves... 108 00:13:02,040 --> 00:13:06,040 ..and hides them from their deadliest predator... 109 00:13:08,080 --> 00:13:11,040 ..great white sharks. 110 00:13:18,040 --> 00:13:23,040 Here, Mum can leave her baby in safety 111 00:13:23,040 --> 00:13:26,400 while she goes foraging for food. 112 00:13:46,040 --> 00:13:51,040 Giant kelp forests can grow as high as a 15-storey building... 113 00:13:57,040 --> 00:14:02,040 ..and are home to nearly 1,000 different species. 114 00:14:05,880 --> 00:14:09,040 But today, they are under threat... 115 00:14:11,040 --> 00:14:17,040 ..as rising sea temperatures draw out a plague from the depths... 116 00:14:24,040 --> 00:14:26,040 ..purple sea urchins. 117 00:14:31,040 --> 00:14:35,040 Millions of them devouring the kelp... 118 00:14:44,040 --> 00:14:47,040 ..uprooting entire forests. 119 00:14:52,040 --> 00:14:54,040 In the last 12 years, 120 00:14:54,040 --> 00:15:00,040 96% of California's kelp has disappeared... 121 00:15:07,040 --> 00:15:11,040 ..leaving the sea otters dangerously exposed. 122 00:15:20,040 --> 00:15:24,040 And warming waters come with added danger... 123 00:15:26,040 --> 00:15:28,040 ..fuelling huge waves... 124 00:15:29,040 --> 00:15:32,040 ..sweeping in from the Pacific. 125 00:15:37,040 --> 00:15:39,040 Nothing stands between them... 126 00:15:41,040 --> 00:15:42,720 ..and the mother and pup. 127 00:15:54,560 --> 00:15:59,720 Even the smallest rise in sea temperature can be catastrophic 128 00:15:59,720 --> 00:16:02,560 for the richest ocean habitat of all. 129 00:16:13,040 --> 00:16:15,040 REPORTER 1: Coral bleaching occurs 130 00:16:15,040 --> 00:16:17,040 when corals expel the colourful algae 131 00:16:17,040 --> 00:16:20,040 living in their tissues, causing them to become pale 132 00:16:20,040 --> 00:16:23,040 and vulnerable to starvation and disease. 133 00:16:23,040 --> 00:16:25,040 REPORTER 2: Back-to-back bleaching events 134 00:16:25,040 --> 00:16:28,040 has destroyed the homes of many fish species, 135 00:16:28,040 --> 00:16:31,040 and now their future hangs in the balance. 136 00:16:44,040 --> 00:16:47,080 More than twice the length of the UK 137 00:16:47,080 --> 00:16:51,040 and famously visible from space, 138 00:16:51,040 --> 00:16:54,040 Australia's Great Barrier Reef 139 00:16:54,040 --> 00:16:58,040 is the largest living structure on Earth... 140 00:17:01,040 --> 00:17:06,040 ..and home to more than 9,000 different species... 141 00:17:18,080 --> 00:17:22,040 ..including the most famous fish in the sea... 142 00:17:24,040 --> 00:17:26,040 ..a clownfish. 143 00:17:30,040 --> 00:17:35,040 The ultimate homebody, this female has lived in the tentacles 144 00:17:35,040 --> 00:17:38,040 of her anemone for 20 years... 145 00:17:39,560 --> 00:17:42,040 ..and has never left... 146 00:17:46,880 --> 00:17:48,040 ..with good reason. 147 00:17:53,040 --> 00:17:57,040 For a two-metre-long humphead wrasse, 148 00:17:57,040 --> 00:18:01,040 a clownfish would make a tasty snack. 149 00:18:21,040 --> 00:18:25,040 But thanks to her thick coat of mucus, 150 00:18:25,040 --> 00:18:28,040 she is immune to the anemone's deadly sting 151 00:18:28,040 --> 00:18:31,040 and perfectly protected... 152 00:18:36,040 --> 00:18:39,040 ..which is just as well. 153 00:18:40,040 --> 00:18:46,040 She and her partner are preparing a nursery. 154 00:19:00,080 --> 00:19:02,040 Over the next two hours... 155 00:19:03,720 --> 00:19:07,040 ..she lays around 300 eggs. 156 00:19:13,040 --> 00:19:16,040 But it's Dad who takes on the childcare, 157 00:19:16,040 --> 00:19:20,040 gently aerating the eggs with his mouth... 158 00:19:22,400 --> 00:19:26,040 ..while Mum stands guard. 159 00:19:31,040 --> 00:19:36,040 But today, she faces a far greater threat. 160 00:19:44,040 --> 00:19:48,240 The seas around Australia are warming. 161 00:19:51,040 --> 00:19:57,040 A deadly oceanic heatwave is enveloping the entire reef. 162 00:20:09,040 --> 00:20:13,040 Just a one-degree rise could spell disaster... 163 00:20:15,560 --> 00:20:17,880 ..for everyone living here. 164 00:20:24,040 --> 00:20:26,040 THUNDER RUMBLES 165 00:20:27,400 --> 00:20:30,400 THUNDER RUMBLES 166 00:20:34,040 --> 00:20:39,040 The earliest category 5 hurricane ever recorded in a season 167 00:20:39,040 --> 00:20:41,720 is closing in on Mexico... 168 00:20:58,040 --> 00:21:01,040 ..striking the flamingo colony 169 00:21:01,040 --> 00:21:04,040 while the chicks are still on the nest. 170 00:21:04,040 --> 00:21:08,040 CHICKS SQUEAK 171 00:21:11,040 --> 00:21:14,040 THUNDER RUMBLES 172 00:21:18,040 --> 00:21:21,040 First comes the rain. 173 00:21:29,040 --> 00:21:32,040 THUNDER RUMBLES 174 00:21:34,040 --> 00:21:39,040 Category 5 hurricanes can dump three months of rain 175 00:21:39,040 --> 00:21:41,040 in a matter of hours. 176 00:21:55,040 --> 00:21:58,040 The young mother tries to bail out the nest 177 00:21:58,040 --> 00:22:00,040 to prevent her chick from drowning. 178 00:22:06,880 --> 00:22:09,040 THUNDER RUMBLES 179 00:22:09,040 --> 00:22:11,040 Next comes the wind... 180 00:22:17,040 --> 00:22:20,040 ..already reaching 60 miles per hour, 181 00:22:20,040 --> 00:22:23,080 100 miles from the eye of the storm. 182 00:22:33,080 --> 00:22:37,040 But the biggest danger is now upon them... 183 00:22:39,040 --> 00:22:40,880 ..storm surges... 184 00:22:44,720 --> 00:22:48,080 ..with the potential to drown the entire colony. 185 00:23:07,040 --> 00:23:10,040 Many choose to save themselves... 186 00:23:12,040 --> 00:23:14,040 ..leaving the young to their fate. 187 00:23:20,080 --> 00:23:24,040 Older chicks manage to escape to higher ground. 188 00:23:33,040 --> 00:23:38,040 But this young mother refuses to abandon her chick. 189 00:23:44,040 --> 00:23:50,040 As long as she remains, her baby still stands a chance. 190 00:24:01,040 --> 00:24:03,040 Over in California, 191 00:24:03,040 --> 00:24:08,040 the sea otter mum is bracing herself for a storm of her own. 192 00:24:14,240 --> 00:24:17,040 REPORTER 1: Experts are calling the conditions right now 193 00:24:17,040 --> 00:24:18,880 life-threatening. 194 00:24:20,040 --> 00:24:22,040 REPORTER 2: If you are not an experienced swimmer, 195 00:24:22,040 --> 00:24:24,040 today is not the day to go ahead and try. 196 00:24:35,040 --> 00:24:39,040 The protection of the kelp forest may have gone, 197 00:24:39,040 --> 00:24:41,040 but Mum still needs to feed. 198 00:24:45,400 --> 00:24:50,880 Leaving the pup exposed, she heads out into the surf. 199 00:25:03,040 --> 00:25:08,040 This is the biggest winter storm she's ever faced. 200 00:25:12,400 --> 00:25:15,560 She desperately tries to gather muscles 201 00:25:15,560 --> 00:25:18,040 against the ripping swell... 202 00:25:45,040 --> 00:25:48,040 ..biting through the tough shell to get to the flesh. 203 00:25:48,040 --> 00:25:49,080 SEA OTTER SQUEAKS 204 00:25:53,040 --> 00:25:56,040 Every huge wave saps her energy. 205 00:26:09,040 --> 00:26:11,400 Even a sea otter can drown... 206 00:26:22,040 --> 00:26:25,040 ..so she deploys a remarkable trick. 207 00:26:29,040 --> 00:26:32,040 She uses a tool. 208 00:26:36,040 --> 00:26:41,400 Smashing muscles on a stone anvil saves her precious seconds. 209 00:27:06,040 --> 00:27:08,560 Now she must get back to her pup. 210 00:27:16,040 --> 00:27:18,040 But he's being swept away. 211 00:27:30,040 --> 00:27:33,040 PUP SQUEAKS 212 00:27:34,240 --> 00:27:36,040 When Mum returns... 213 00:27:37,040 --> 00:27:41,040 SEA OTTER SQUEAKS ..he's nowhere to be seen. 214 00:27:41,040 --> 00:27:43,040 SEA OTTER SQUEAKS 215 00:28:04,040 --> 00:28:10,040 The marine heatwave has engulfed the entire Great Barrier Reef. 216 00:28:16,400 --> 00:28:20,040 REPORTER: These tropical waters are calm and pristine... 217 00:28:22,040 --> 00:28:27,040 ..but it doesn't take long to find signs of an ecosystem in distress. 218 00:28:39,040 --> 00:28:41,040 Despite the impending disaster... 219 00:28:43,040 --> 00:28:47,720 ..the doting clownfish carry on their parental duties... 220 00:28:54,040 --> 00:28:58,040 ..while the coral is fighting for survival. 221 00:29:04,880 --> 00:29:08,040 Living inside are tiny algae 222 00:29:08,040 --> 00:29:13,040 which harvest sunlight to produce 90% of the coral's food. 223 00:29:21,080 --> 00:29:24,400 But a two-degree rise in temperature... 224 00:29:26,040 --> 00:29:30,040 ..is enough for the algae to be expelled... 225 00:29:40,040 --> 00:29:45,040 ..leaving the coral to lose its colour and starve. 226 00:29:53,040 --> 00:29:57,040 Today, coral bleaching is overwhelming 227 00:29:57,040 --> 00:29:59,040 the Great Barrier Reef... 228 00:30:06,040 --> 00:30:09,040 ..on an unprecedented scale. 229 00:30:23,040 --> 00:30:25,720 And it's not just the coral that can bleach. 230 00:30:41,040 --> 00:30:45,080 The sea anemone also expels its algae... 231 00:30:52,040 --> 00:30:56,040 ..and could even lose the potency of its sting... 232 00:31:01,040 --> 00:31:06,040 ..leaving the clownfish and their eggs defenceless. 233 00:31:14,240 --> 00:31:17,040 Opportunists waste no time. 234 00:31:47,720 --> 00:31:49,080 She's lost her brood. 235 00:31:54,040 --> 00:31:57,040 But she's not ready to give up just yet. 236 00:32:02,040 --> 00:32:04,040 THUNDER RUMBLES 237 00:32:05,560 --> 00:32:08,560 THUNDER RUMBLES 238 00:32:11,040 --> 00:32:14,040 REPORTER 1: The storm was the earliest category 5 hurricane 239 00:32:14,040 --> 00:32:17,400 to be recorded in an Atlantic hurricane season. 240 00:32:18,880 --> 00:32:20,040 REPORTER 2: From the air, 241 00:32:20,040 --> 00:32:23,040 devastation and ruin as far as the eye can see. 242 00:32:35,040 --> 00:32:38,040 Calm has returned to the Caribbean. 243 00:33:00,040 --> 00:33:04,040 The amorous male anole lizard made it... 244 00:33:07,040 --> 00:33:10,040 ..thanks to his unusually big feet... 245 00:33:12,040 --> 00:33:16,040 ..allowing him to hold tight against the hurricane... 246 00:33:20,040 --> 00:33:23,040 ..along with the equally big-footed female. 247 00:33:33,040 --> 00:33:37,040 Time for flirtations to resume. 248 00:33:55,040 --> 00:33:58,040 Now the trait that helped them survive 249 00:33:58,040 --> 00:34:01,040 will be passed on to their young. 250 00:34:09,040 --> 00:34:13,240 Astonishingly, a single hurricane season 251 00:34:13,240 --> 00:34:17,040 can change the toe size of an entire population... 252 00:34:22,040 --> 00:34:25,880 ..an example of accelerated evolution 253 00:34:25,880 --> 00:34:30,040 in the face of today's extreme weather. 254 00:34:59,560 --> 00:35:05,040 In Mexico, the early hurricane hit the flamingos 255 00:35:05,040 --> 00:35:07,040 at the peak of breeding season. 256 00:35:22,560 --> 00:35:26,040 Of the 15,000 nests, 257 00:35:26,040 --> 00:35:30,040 less than a third of the chicks survived. 258 00:35:45,040 --> 00:35:51,040 But the young flamingo mum's refusal to abandon her nest 259 00:35:51,040 --> 00:35:53,040 has paid off. 260 00:35:58,040 --> 00:36:01,040 FLAMINGO SQUEAKS 261 00:36:19,040 --> 00:36:23,040 And those who lost their brood haven't given up. 262 00:36:29,040 --> 00:36:34,040 In the past, these flamingos raised just one brood a year. 263 00:36:37,040 --> 00:36:42,040 Now they're adapting to extend their breeding window. 264 00:37:02,040 --> 00:37:04,040 So those who lost their young... 265 00:37:05,040 --> 00:37:08,040 ..have another chance at parenthood. 266 00:37:25,040 --> 00:37:27,040 Just one month later... 267 00:37:28,880 --> 00:37:32,880 ..there's a whole new nursery of chicks to look after. 268 00:37:41,240 --> 00:37:43,040 There's no doubt 269 00:37:43,040 --> 00:37:47,040 that powerful hurricanes will continue to strike early. 270 00:37:50,040 --> 00:37:55,560 But these flamingos now stand a chance of weathering the storm. 271 00:38:09,040 --> 00:38:12,040 As oceans become more violent, 272 00:38:12,040 --> 00:38:15,040 finding shelter has never been tougher. 273 00:38:36,040 --> 00:38:37,040 SEA OTTER SQUEAKS 274 00:38:37,040 --> 00:38:40,040 The sea otter mum has lost her pup. 275 00:38:43,040 --> 00:38:46,040 SEA OTTER SQUEAKS 276 00:38:52,720 --> 00:38:55,040 Nearly half of all pups perish 277 00:38:55,040 --> 00:38:58,040 in the first three months of their lives. 278 00:39:02,040 --> 00:39:04,400 All she can do is cry out for him. 279 00:39:04,400 --> 00:39:06,040 SEA OTTER SQUEAKS 280 00:39:19,040 --> 00:39:21,040 SEA OTTER SQUEAKS 281 00:39:33,040 --> 00:39:36,400 Then, defying the odds... 282 00:39:37,720 --> 00:39:41,040 ..mother and pup are reunited. 283 00:39:52,040 --> 00:39:54,040 But if they're to survive... 284 00:39:56,560 --> 00:39:59,040 ..Mum must find shelter. 285 00:41:05,040 --> 00:41:10,040 She can swim more than 20 miles in a single day... 286 00:41:31,040 --> 00:41:34,040 ..searching for a special place... 287 00:41:48,040 --> 00:41:50,040 ..where sea otters gather... 288 00:41:51,560 --> 00:41:53,040 ..in their hundreds... 289 00:42:05,040 --> 00:42:10,040 ..forming living rafts for protection against winter storms. 290 00:42:18,720 --> 00:42:23,400 This sea otter mum and pup are finally safe. 291 00:42:34,040 --> 00:42:37,040 A remarkable response 292 00:42:37,040 --> 00:42:42,040 as oceans become warmer and more treacherous. 293 00:42:59,080 --> 00:43:03,040 The marine heatwave has now bleached 294 00:43:03,040 --> 00:43:07,040 more than three quarters of the entire Great Barrier Reef. 295 00:43:14,040 --> 00:43:20,040 Once thriving coral gardens reduced to rubble. 296 00:43:24,040 --> 00:43:29,040 Countless marine creatures have lost their homes. 297 00:43:35,040 --> 00:43:39,040 The clownfish's anemone is close to death. 298 00:43:43,240 --> 00:43:46,040 But not if she can help it. 299 00:43:49,040 --> 00:43:51,400 Using her fins and tail... 300 00:43:53,880 --> 00:44:00,040 ..she aerates its tentacles, making sure it has plenty of oxygen. 301 00:44:06,400 --> 00:44:09,040 Dirt is swiftly dealt with... 302 00:44:13,040 --> 00:44:17,040 ..to keep the anemone clean and disease-free. 303 00:44:33,040 --> 00:44:39,040 Tirelessly, she nurses her anemone... back to life. 304 00:44:55,240 --> 00:45:00,040 An anemone this size may be over 80 years old... 305 00:45:03,040 --> 00:45:07,040 ..but it has never experienced water temperatures like today. 306 00:45:17,040 --> 00:45:21,040 If a few resilient creatures like these can hold on... 307 00:45:23,040 --> 00:45:27,560 ..the reef stands a chance of making it through to better times. 308 00:45:38,040 --> 00:45:43,040 As for the clownfish, she has one last surprise... 309 00:45:46,040 --> 00:45:48,040 ..a new generation.