
Horizon: The Day the Earth Melted
The earth split in India 66 million years ago in a disaster that may have caused the end of the dinosaurs.

The earth split in India 66 million years ago in a disaster that may have caused the end of the dinosaurs.

David Attenborough investigates the discovery of a giant dinosaur find in Argentina.

What finally killed all the woolly rhinos, mammoths, sloths and sabre-toothed cats?

Professor Alice Roberts ventures to the areas hit hardest by the cold of the Ice Age.

Professor Alice Roberts is on the trail of Ice Age beasts including the sabre-toothed cat.

What finally killed all the woolly rhinos, mammoths, sloths and sabre-toothed cats?

Professor Alice Roberts ventures to the areas hit hardest by the cold of the Ice Age.

Professor Alice Roberts is on the trail of Ice Age beasts including the sabre-toothed cat.

This episode's featured species are the coelophysis and the diplodocus.

David Attenborough explores why dinosaurs vanished while reptiles like crocodiles and turtles survived.

A look at the scientific work which went into the reconstruction of Big Al the Allosaurus.

In 1991, scientists discovered a perfectly preserved Allosaurus body and named him Big Al. This is his story.

Nigel Marven is on the trail of the dinosaur with the biggest claws of all time.

Computer animation is used to simulate dinosaurs in a walk alongside the biggest ones that ever lived.

The Hittites ruled an empire from Hattusha, lost for 2,500 years until its rediscovery.

Tucume, South America's largest pyramid city, has 26 structures and a history of sacrifice and neglect.

Piramesses, the grand capital of Ramesses II, was lost to time until scientists found it in the desert.

In a brutal world where nature is both friend and foe, our ancient powers take shape.

We shed fresh light on the mysteries of King Tutankhamun's tomb.

After a short reign, Tutankhamun falls dangerously ill.