On the other side of the world under the crystal clear blue waters of the Pacific Ocean lies one of the most enchanting places on the planet. Over ten thousand miles away on the north eastern coast of Australia lies the Great Barrier Reef, one of the natural wonders of our world. It provides shelter to some hidden wildlife sanctuaries that contain some magical marine creatures. Iolo Williams dives deep beneath the surface of the coral sea to discover what state this natural wonder is in. He travels from the extreme swells of the northern part of the reef right down to the cooler pristine corals of the south. He discovers how healthy the Great Barrier Reef really is in some of its key locations to see and find out if there are real signs of hope the reef can survive the threat of global warming.
Just off the southern coast of Africa, beneath the warm waters of the Indian Ocean, lies a safe zone created by a unique confluence of geography and climate: a sanctuary with a vibrant concentration of dazzling aquatic life. Embark on an underwater adventure into a marine wilderness stronghold.
Hummingbirds represent one of nature's most interesting paradoxes - they are the tiniest of birds, yet they qualify as some of the toughest and most energetic creatures on the planet. New knowledge gained from scientists currently making great breakthroughs in hummingbird biology makes this a perfect time to focus on these shimmering, flashing jewels of the natural world. Stunningly beautiful high-definition, high-speed footage of hummingbirds in the wild combined with high-tech presentations of their remarkable abilities help us to understand the world of hummingbirds as we never have before.
Look into a herd of zebras and try counting the animals. You can't! The mesmerizing effect was long thought to serve as a sort of camouflage against predators. We travel to Africa to scrutinize this and other theories regarding the zebra's fascinating striped pattern. A way to beat the heat on the savanna? Perhaps to ward off the dangerous Tsetse fly whose unending appetite for blood can result in death?! Let's keep cool while avoiding some nasty bites and learn how the zebra earned its stripes!
The leatherback sea turtle is a magnificent creature that can be found in Atlantic, Pacific, and Indian Oceans. This ancient species swims faster, travels further, and dives deeper than any other reptile on the planet. In the Atlantic, they migrate every year from their nesting grounds in the Caribbean to the chilly waters off the east coast of Canada where they feast on jellyfish. This epic annual journey – at a staggering 12,000 km – is the longest for any reptile in the world.