Why on Earth • 2022

47:02

He reaches the final stage of his epic 650-mile journey, following the annual migration of Botswana's 130,000 elephants. Together with his guide Kane, Lev follows the elephants deep into the heart of the Okavango Delta, a vast wetland teeming with wildlife where every year more than 40,000 elephants gather to feed. Lev and Kane narrowly avoid a pride of lions who have brought down a male buffalo and watch as they move in for the kill, but are forced to wade through wide channels where crocodiles, hippos and snakes lurk.

S1E3 • Walking with Elephants with Levison Wood • 2020 • Nature

48:04

Every summer, the frozen waters of Hudson Bay partially thaw for a few short months. For migrating beluga whales, it's a seasonal window of feeding and breeding opportunities, but for polar bears, it's a famine-filled test of their survival. Explore the shifting fortunes of a vibrant Arctic world.

S1E6 • Arctic Secrets • 2015 • Nature

59:03

David Attenborough is in the Swiss Jura Mountains to discover the secrets of a giant. Beneath his feet lies a vast network of tunnels and chambers, home to a huge empire of ants. It is believed to be one of the largest animal societies in the world, where over a billion ants from rival colonies live in peace. Their harmonious existence breaks many of the rules for both ants and evolution, and raises some important questions. Through winter, spring and into summer, David turns detective to find the answers.

Natural World • 2017 • Nature

54:10

The penultimate instalment investigates the primates, whose defining characteristics are forward-facing eyes for judging distance, and gripping hands with which to grasp branches, manipulate food and groom one another. The programme begins in Madagascar, home to the lemurs, of which there are some 20 different types. Two examples are the sifaka, which is a specialised jumper, and the indri, which has a well-developed voice. Away from Madagascar, the only lemur relatives to have survived are nocturnal, such as the bushbaby, the potto and the loris. The others were supplanted by the monkeys and a primitive species that still exists is the smallest, the marmoset. However, Attenborough selects the squirrel monkey as being typical of the group. Howler monkeys demonstrate why they are so named their chorus is said to the loudest of any mammal and their prehensile tails illustrate their agility.

12/13 • Life on Earth • 1979 • Nature

23:11

The older a species, the better it is at adapting to change. From the ancient lineage of sharks, who've evolved into perfect predators, to the living fossil known as the bichir, get a closer look at some of nature's enduring evolutionary masters.

S1E6 • Mysteries of Evolution • 2017 • Nature

20:57

A look at why a seal throw an octopus at a kayaker; why a moth is drinking from the eye of a bird in the Amazon jungle and what surprising creature has been leaping out of the Irish Sea.

S1E19 • Nature's Strangest Mysteries: Solved • 2019 • Nature