What Makes Me, Me? • 2018 • episode "3/3" • Who Am I (Royal Institution Christmas Lectures)

44:59

At four billion years old, the ocean is nearly as ancient as the planet itself. Find out the story of its turbulent beginnings.

1/4 • Life of Oceans • 2010 • Nature

59:06

Whales and sea lions alike journey to the seas off Alaska to feed on the plankton bloom.

6/6 • Nature's Great Events • Nature

28:20

Hybrids can be bizarre and they can be deadly. We look at two hybrid animals that owe their existence to human interference - the pizzly bear (a cross between a polar bear and grizzly), which has come into being because of global warming, and the killer bee, brought into existence because of the transfer of African bees to South America.

S4E1 • Natural Curiosities • 2018 • Nature

48:01

Twin lions Chief and Notch maintain a powerful bond, both to each other and to the famous Nsefu pride over which they preside. Enter a pair of nomadic rivals, flagrantly trespassing on pride land. Will the old allegiances hold or will the pride females be swayed by the lure of these bold interlopers? It falls on the brothers to demonstrate that they are the true kings of Nsefu.

S2E3 • Africa's Hunters • 2018 • Nature

58:48

Horizon discovers what your cat really gets up to when it leaves the cat flap. In a groundbreaking experiment, 50 cats from a village in Surrey are tagged with GPS collars and their every movement is recorded, day and night, as they hunt in our backyards and patrol the garden fences and hedgerows. Cats are fitted with specially developed cat-cams which reveal their unique view of our world. You may think you understand your pet, but their secret life is more surprising than we thought.

Nature

56:53

Visits the world's deepest valley: the Kali Gandaki river in the Himalayas. Its temperatures range from those of the tropics in its lower reaches to that of the poles higher up. It therefore shows how creatures become adapted to living in certain environments.

1/12 • The Living Planet • 1984 • Nature