After the Permian period, the epic saga of evolution and extinction on Earth produced the world's first dinosaurs, plesiosaurs and pterosaurs. They dominated land, sea and air until another period of extreme volcanism generated vast waves of lava and toxic gas and killed roughly 75% of all species.
The Cretaceous was the golden age on ancient Earth. Magnificent and terrifying dinosaurs like Triceratops and Tyrannosaurus ruled the land. But they were all wiped out in an instant by one of the most powerful impacts our Earth has ever endured -- a collision with an asteroid!
David Attenborough takes a breathtaking journey through the vast and diverse continent of Africa as it has never been seen before. (Part 4: Cape) Southern Africa is a riot of life and colour because of two great ocean currents that sweep around the continent's Cape. To the east, the warm Agulhas current generates clouds that roll inland to the wettest place in southern Africa. To the west is the cold Benguela current, home to more great white sharks than anywhere else. Moisture laden fog rolls inland, supporting an incredible desert garden. Where the two currents meet, the clash of warm and cold water creates one of the world's most fabulous natural spectacles - South Africa's sardine run. This is the greatest gathering of predators on the planet, including Africa's largest, the Bryde's whale.