Insect Apocalypse • 2021 • Bright Now

54:17

The episode begins in the South American rainforest whose rich variety of life forms is used to illustrate the sheer number of different species. Since many are dependent on others for food or means of reproduction, David Attenborough argues that they couldn't all have appeared at once. He sets out to discover which came first, and the reasons for such diversity. He starts by explaining the theories of Charles Darwin and the process of natural selection, using the giant tortoises of the Galapagos Islands (where Darwin voyaged on HMS Beagle) as an example. Fossils provide evidence of the earliest life, and Attenborough travels a vertical mile into the Grand Canyon in search of them.

1/13 • Life on Earth • 1979 • Nature

57:56

The world of the armoured creature is equally fascinating and bizarre. Galapagos giant tortoises solve the problem of making love in a suit of armour; a heated sea turtle orgy leaves females in mortal danger and we witness the explosive arrival of a baby pig-nosed turtle. Giant salt-water crocodiles crowd a flooded river-run to fish for mullet and a caiman leads her brood in a touching trek to a communal crèche.

S1E5 • Life in Cold Blood • 2008 • 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

55:55

At the far tip of South America, lies a magical realm that seems frozen in time. Known as "the end of the world", this is Patagonia.

S1E5 • Eden Untamed Planet • 2021 • Nature

23:06

When you're a baby zebra, muskox, or pronghorn, there is no shortage of predators eyeing you as their next meal. From learning defensive herding to early sprinting skills, these vulnerable newborns hit the ground running with keen survival instincts.

S1E4 • Baby Animals • 2016 • Nature

59:06

In a dramatic conclusion to the series, the travellers have a close encounter with grey whales and meet the deadly Humboldt squid in a search for the mighty blue whale, the biggest creature that has ever lived.

S1E6 • Last Chance to See • 2009 • Nature