The Secret Lives of Lions • 2019 • episode "S1E4" • The Secret Lives of Big Cats

49:28

The first episode tells how invertebrates became the first creatures of any kind to colonise dry land. Their forerunners were shelled and segmented sea creatures that existed 400 million years ago. Some of them ventured out of the water to lay their eggs in safety, and Attenborough compares those first steps with today's mass spawning of horseshoe crabs off the Atlantic coast of North America.

Part 1 • Life in the Undergrowth • 2005 • Nature

46:23

Chobe is Botswana's first national park, as well as the name of the mighty river that runs through it. Explore how its iconic species, like elephants, baboons, and lions, pass on their secrets of survival to the youngest members of their families.

S1E6 • Great Parks of Africa • 2017 • Nature

58:48

Reptiles and amphibians look like hang-overs from the past. But they overcome their shortcomings through amazing innovation. The pebble toad turns into a rubber ball to roll and bounce from its enemies. Extreme slow-motion shows how a Jesus Christ lizard runs on water, and how a chameleon fires an extendible tongue at its prey with unfailing accuracy. The camera dives with a Niuean sea snake, which must breed on land but avoids predators by swimming to an air bubble at the end of an underwater tunnel. In a TV first, Komodo dragons hunt a huge water-buffalo, biting it to inject venom, then waiting for weeks until it dies. Ten dragons strip the carcass to the bone in four hours.

2/10 • Life • 2009 • Nature

54:39

Left to their own devices, birds have reached almost all ends of the Earth - still, humans can do many things to help their feathered friends.

S1E10 • The Life of Birds • 1998 • Nature

3:50

When you picture the lowest levels of the food chain, you might imagine herbivores happily munching on lush, living green plants. But this idyllic image leaves out a huge (and slightly less appetizing) source of nourishment: dead stuff. John C. Moore details the "brown food chain," explaining how such unlikely delicacies as pond scum and animal poop contribute enormous amounts of energy to our ecosystems.

TED-Ed • Nature

58:00

Concludes with a look at the work of people striving to protect Asia's endangered wildlife, and what routes conservation could take in the future. In Japan, scientists take pregnant sharks, killed accidentally in fishing nets, and rescue their unborn young in an incubating system that simulates a womb. The programme also visits a village that used to be a hotbed of poaching and is now a centre for bird tourism.

S1E7 • Asia • 2024 • Nature