Hidden Russia • 2020

52:55

This episode continues the study of mammals, and particularly those whose young gestate inside their bodies. Attenborough asks why these have become so varied and tries to discover the common theme that links them. Examples of primitive mammals that are still alive today include the treeshrew, the desman and the star-nosed mole. Insect eaters vary enormously from the aardvark, giant anteater and pangolin to those to which much of this programme is devoted: the bats, of which there are nearly 1,000 different species. These took to flying at night, and its possible that they evolved from treeshrews that jumped from tree to tree, in much the same way as a flying squirrel.

10/13 • Life on Earth • 1979 • Nature

48:04

Tanzania's Mount Kilimanjaro is the highest freestanding mountain and volcano in the world. Join wildlife expert Jean du Plessis as he makes the perilous summit climb through its five vastly different climates to understand how quickly its famed glaciers are melting.

S1E4 • Nomads of the Serengeti • 2018 • Nature

58:40

The story of animals surviving one of the harshest seasonal changes on the planet continues. As winter turns to spring, temperatures rise and Yellowstone bursts into life. Beavers feast on new green shoots, baby bison take their first faltering steps and grizzly bear cubs emerge from dens to explore this new green world. But spring is also a perilous time. Wolves are hungrier than usual after slim winter pickings. And rising temperatures melt the vast mountain snow pack, sending a million tons of water flooding into the rivers. Only the toughest will survive.

S1E2 • Yellowstone: Wildest Winter to Blazing Summer • 2016 • Nature

48:03

Nine miles off the coast of Oman, a zebra shark scans the ocean floor for crustaceans, while a menacing giant stingray floats by. Soon, night becomes day and new killers emerge, from toxic scorpion fish to crown-of-thorns starfish, both bringing coral devastation. Dive among these deadly marine carnivores.

S1E1 • Arabian Seas • 2018 • Nature

28:55

Mike and his team confront an armour-plated catfish, discover a 45-metre hole in the riverbed and come face to face with an anaconda.

S1E3 • Amazon Abyss • 2005 • Nature

49:59

Traveling north across the planet, eventually, you’ll run out of forest, a land too harsh for even trees to take root. This is tundra. But with dramatic seasonal changes, it offers rich rewards for those tough enough to take on the challenge.

2021 • Nature