Human Evolution • episode "6" • Crash Course Big History

57:07

The first programme of Darwin's Dangerous Idea explores the impact of Darwin’s ideas on religion and morality. Andrew Marr discovers that an important part of the Beagle’s mission was to return three natives to their homeland, Tierra del Fuego, at the southernmost tip of Argentina. Years before he reached the Galapagos, they raised questions in his mind about the fragility of civilisation and what it really means to be human. Marr explores how Darwin developed his ideas when he returned to Britain and finally unleashed his theory of evolution by natural selection on the world. Darwin’s ideas are taken up by many of the major thinkers of the late 19th and early 20th centuries: Karl Marx, Friedrich Nietzsche and Sigmund Freud. We discover that his ideas helped motivate the Kaiser’s army in the First World War and would also help convince the United States government to drop its isolationist policy and enter the conflict. In the 20th century, we discover a growing backlash against Darwin’s ideas among fundamentalists from the world’s major religions. At the same time science has been showing that Darwin’s theory of natural selection holds sway over our behaviour - including our morality - as much as it does over the evolution of our bodies. There is significant scientific evidence that suggests that Darwin has returned humanity to nature, in all its wonder, its glory and its danger.

S1E1 • Darwin's Dangerous Idea • 2009 • Nature

29:38

Where land meets sea, rockhopper penguins, orca whales, and elephant seals find incredible ways to cut through the chaos.

S1E8 • Earth Sounds • 2024 • Nature

51:26

The era of the sabretooth and many other Pleistocene creatures comes to an end. The biggest big cats ever, the lion and the tiger, become the kings of their respective habitats - but they had to fight for their place. To survive, these great cats target larger and more challenging prey.

S1E2 • Age of Big Cats • 2018 • Nature

28:29

David Attenborough investigates two shells that have proved to be winners in evolution: the tortoise's shell and the shells of birds' eggs. The ostrich egg is so strong it is possible for a person to stand on it without it breaking, but how does the chick break out of this fortress? The evolution of the tortoise shell was for a long time a mystery and this bony box offers a lot more than just protection.

S4E5 • Natural Curiosities • 2018 • Nature

58:30

The wildlife inhabiting the world's oceans, from the shallow seas of the tropics, where predators like the lionfish can become the prey to one of the world's oddest hunters, to the greatest depths, where a massive siphonophore, longer than a blue whale, and a gulper eel with huge jaws are captured on film using specialised vessels designed to withstand the pressure. The episode also features the mating dances of mobula rays and the symbiotic relationship between Columbus crabs and turtles.

S1E2 • Planet Earth III • 2023 • Nature

51:45

Every year, the painted lady butterflies undertake a mysterious migration. This discreet journey covers thousands of kilometers and triggers puzzles that scientists are still trying to understand today. Thanks to cutting-edge technology, we will track the butterflies on their journey.

S1E4 • Secret Migrations • 2019 • Nature