Patrick follows the grizzly bears that are taking a risk with the weather by leaving their winter dens early. Hungry wolves are struggling to bring down their elk prey in the unusually shallow snow. And for great grey owls, it is the iciness of the snow that is hampering their hunts. Yellowstone's winter is always one of the most brutal on the planet. But 2016 saw weather records broken, and the wildlife was forced to adapt to survive. Kate Humble gets to grips with the science behind this remarkable season, from understanding the importance of the snowpack's structure as the melt begins to uncovering why Yellowstone's unique geology poses problems for some grazer's teeth.
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.
Sir David Attenborough gives his unique perspective on over half a century of innovation in wildlife filmmaking. He revisits key places and events in his filming career, reminisces with his old photos and reflects on memorable wildlife footage - including him catching a komodo dragon and swimming with dolphins. Returning to his old haunts in Borneo he recalls the challenges of filming in a bat cave and shows how with modern technology we can now see in the dark.
Despite their diminutive stature, little penguins are a formidable species. They spend months at sea hunting, they mate for life, and when gulls threaten to steal their hard-earned fish, they band together in groups for self-defense. Journey to the sandy beaches of Southern Australia, where the tiniest penguin species on the planet is living large.
On the second leg of their journey, wildlife filmmakers Gordon Buchanan and Justine Evans, along with a team of scientists, head deep into the mountains of western Burma. This is where they hope to find the shy sun bear and two of the world's rarest and most beautiful cats: the Asian golden cat and the clouded leopard. Meanwhile, zoologist Ross Piper and the science team are on a mission to create a wildlife survey to present to the government of Burma to persuade them that these forests are so unique they must be protected. High on the forest ridges, Gordon finds evidence to suggest that Burma's wildlife might be in danger. Undercover filming in a border town known as the 'Las Vegas of the jungle' leads to a shocking discovery.