Koalas • 2017 • episode "S1E2" • Wildlife

29:13

Dr Helen Czerski looks at the anatomy of an avalanche. From shocking eyewitness footage from within an avalanche, to detailed CT scans showing the microscopic changes that cause them, we can now capture exactly what happens as snow transforms into a deadly and unpredictable danger.

Part 1 • Dangerous Earth • 2016 • Nature

52:04

A thousand years ago, many millions of whales dominated the sea, with their ancient behaviours vital to the well-being of the oceans. These marine mammals are the ambassadors between one world and another, land and sea, their close communities only now being truly researched and understood. They are still a keystone species in our fragile ecosystem today, with crucial impact on our seas and the life contained within them. But whaling decimated their numbers over the last 150 years, in particular the whaling industry run by the KGB during the Cold War. In a basement in Odessa, top-secret Soviet whaling reports record the unimaginable number of whales killed. This film tells how surviving members of the Soviet leadership, and original Soviet whalers, uncover these secret records, allowing us to understand the magnitude of historical whale populations and the shocking impact of commercial whaling. Whale populations are now largely cherished across the world as we begin to understand these amazing animals, their intelligence and their important contribution to the sustainability and health of the oceans.

2023 • Nature

46:23

From mountain zebras to shy and secretive caracals, Karoo National Park showcases a diversity of creatures who have adapted to demanding environmental conditions. Scale the varying altitudes of this nature reserve's vast landscape.

S1E4 • Great Parks of Africa • 2017 • Nature

58:01

Asia's jungles are exceptionally diverse, but whilst they provide shelter, food and opportunity, they are also full of dangers and hidden threats. In monsoon forests, tigers tenaciously hunt their prey, and prehistoric-looking rhinos play courtship games akin to kiss chase. In tropical rainforests, female orangutans must search far and wide to find their perfect mates. And in the little-known forests of Iraqi Kurdistan, a new Persian leopard population is growing amid minefields.

S1E4 • Asia • 2024 • Nature

53:21

This instalment examines the earliest land vegetation and insects. The first plants, being devoid of stems, mainly comprised mosses and liverworts. Using both sexual and asexual methods of reproduction, they proliferated. Descended from segmented sea creatures, millipedes were among the first to take advantage of such a habitat and were quickly followed by other species. Without water to carry eggs, bodily contact between the sexes was now necessary. This was problematical for some hunters, such as spiders and scorpions, who developed courtship rituals to ensure that the female didn't eat the male.

3/13 • Life on Earth • 1979 • Nature

58:04

David Attenborough introduces conservation heroes fighting to save the world's wildlife, from exploring remote jungles to going undercover to catch criminals in the illegal ivory trade. In South Africa, new breeding populations of black rhino are set up in safe havens where they will be protected from poachers, while a conservationist in Ecuador works to protect endangered frogs.

S1E8 • Planet Earth III • 2023 • Nature