Size Matters • episode "S1E4" • Wonders of Life

58:00

Sir David Attenborough chooses his favourite recordings from the natural world that have revolutionised our understanding of song. Each one - from the song of the largest lemur to the song of the humpback whale to the song of the lyrebird - was recorded in his lifetime. When Sir David was born, the science of song had already been transformed by Charles Darwin’s theory of sexual selection: singing is dangerous as it reveals the singer’s location to predators, but it also offers the male a huge reward, the chance to attract a female and pass on genes to the next generation. Hence males sing and females don't. Today, new science in the field of birdsong is transforming those long-held ideas. Scientists are discovering that, in fact, in the majority of all songbird species, females sing - and it is only now they are being properly heard. Through this revelation and others, we can understand that animal songs are marvelous examples of the spectacular survival strategies that species have developed in order to stay alive.

2021 • Nature

23:11

From powerful sharks to mysterious fish shoals, the underwater dynamic between predator and prey is a never-ending one. Join these amazing creatures as they employ both offensive and defensive evolutionary adaptations, such as sharp senses and swarm intelligence, in their bid for survival.

Attack and Defend • 2016 • Nature

28:34

In the climax of the expedition, the team prepares to explore a 100-meter chasm at the very bottom of the river. Underwater robots take cameras down the abyss and find the deep water flesh-feeding candiru.

S1E5 • Amazon Abyss • 2005 • Nature

13:50

What is it that makes us so drawn to the morbid things?

Nature

46:25

Explore the wild blue Caribbean waters of Cozumel, a lush paradise packed with marine surprises. From the spectacular Paso Del Cedral coral reef to the world's longest subterranean underwater cave system, go where only the bravest divers dare venture.

4 • Great Blue Wild • 2017 • Nature

58:10

A young tigress is chosen to found a new dynasty. Airlifted from her home in an Indian park to life in a new reserve, Baghani the tigress must fight with leopards for territory and learn to hunt dangerous wild boar. Also released is Rajore, a hot-blooded young male. For two years, every aspect of their lives is followed by the camera. Will they mate and start a family, or will they be killed by poachers?

2012 • Nature