Jungles comprise the most diverse habitats on Earth in which only the most resilient species triumph; the fiercest jungle species include jaguars, caimans, gibbons, orangutans, spectral tarsiers, hummingbirds, and parasites.
A polar bear mother keeps watch over her cub as they wait for the coming winter and the plentiful feeding opportunities it brings. But there are threats abound: from cannibalistic male bears, to the devastating impact of climate change, which has delayed the seasonal freeze and put them at risk of starvation.
This is the story of two tiny animals coming of age. In the wild woods of North America, a young chipmunk is gathering a vital store of nuts ahead of his first winter - in his way are ruthless rivals and giant predators. In the steaming rainforest, a young tree-shrew is forced deep into the jungle to find food. She must draw on all her intelligence and agility if she is to escape the ultimate jungle predator - a reticulated python!
Andrew Scott narrates a special programme which celebrates winter and explores how animals and plants rise to the challenges it brings. With their world encased in snow and ice, animals must find the most inventive ways to survive and even benefit from the cold. Caribou become ice road travellers as it gets slippery underfoot, stoats make their own fur bedding, and snow monkeys find a warm bath. Emperor penguins are built for the cold weather, but even they must find their own tricks to endure the world's most savage winter.
David Attenborough narrates this documentary about the giant squid, a creature of legend and myth which even in the 21st century, has rarely been seen in it's natural environment. But now, an international team of scientists think they have finally found their lair, one thousand metres down, off the coast of Japan. This is the culmination of decades of research. The team deploys underwater robots and state of the art submersible vessels for a world first - to find and film the impossible.
Africa - home to the greatest wildlife gatherings on Earth, but even in this land of plenty, wildlife faces huge challenges. In the jungles, young chimps learn to use tools to find food. On the savannah, a group of cheetah brothers team up to hunt prey twice their size. And, in crystal clear freshwater lakes, caring fish mothers are tricked by devious imposters. Africa’s deserts are tough too. In the Namib, hyena make epic treks to find food on the beach, whilst in the Kalahari, the bizarre aardvark digs deep to find a meal. But for much of Africa’s wildlife the greatest threat comes from humans.