The Dolphin • 2026 • episode "S1E4" • Evolution

53:37

This programme focuses on birds. The feather is key to everything that is crucial about a bird: it is both its aerofoil and its insulator. The earliest feathers were found on a fossilised Archaeopteryx skeleton in Bavaria. However, it had claws on its wings and there is only one species alive today that does so: the hoatzin, whose chicks possess them for about a week or so. Nevertheless, it serves to illustrate the probable movement of its ancestor. It may have taken to the trees to avoid predators, and over time, its bony, reptilian tail was replaced by feathers and its heavy jaw evolved into a keratin beak.

8/13 • Life on Earth • 1979 • Nature

48:34

Developed over centuries, coral reefs house fragile ecosystems, but they too have to fight to survive.

S1E6 • Blue Planet I • 2001 • Nature

58:58

David Attenborough reveals the life of the hippopotamus as never seen before. With incredible underwater footage, this film delves into the world of the hippo – an animal that cannot swim yet is utterly dependent on water. In Botswana's Okavango delta, hippos face an unparalleled challenge - deep floodwaters dry to dust in a matter of months. In one extraordinary season, the team go beneath the surface to see them protect their families and face their enemies as they deal with the drought. Going far beyond their dangerous reputation, the show discovers the true nature of the hippo, an animal that is compassionate, sensitive and highly intelligent.

Natural World • 2019 • Nature

57:52

Beginning in Antarctica, Emperor Penguin chicks are abandoned by their parents as spring begins and must find their way across the treacherous sea ice to the rich waters of the Southern Ocean. In the Himalayas, the world's fluffiest cat hunts for gerbils and voles, while in the boreal forests circling North America, Europe and Asia, a Siberian tiger is on the lookout for black bears.

S1E1 • Frozen Planet II narrated by Sir David Attenborough • 2022 • Nature

43:19

There is no uncommon sight hanging on the trees of Asian black bears, chipmunks, scurrying about in search of food, as well as the sika deer, gracefully descend to the water to supplement your diet with brown algae. The very presence of deer and deer attracts the largest predator in this region - the Amur tiger. But the world's largest wild cat is also at risk. Poaching and destruction of habitat of tigers in the Ussuri taiga in Russia for many years have created a real threat of extinction of this rare animal.

S1E2 • Wild Russia • 2009 • Nature

48:53

Venture into the deep, dark and desolate oceans that are home to an abundance of beautiful -- and downright strange -- creatures.

S1E6 • Our Planet • 2019 • Nature