Five times, Earth has faced apocalyptic events that swept nearly all life from the face of the planet. What did these prehistoric creatures look like? What catastrophes caused their disappearance? And how did our distant ancestors survive and give rise to the world we know today?

The annual sardine migration up the eastern coast of South Africa creates a moving feast of billions of tiny fish for one of the most diverse shark populations on the planet

A documentary about Hannibal Barca - the general and ruler of New Carthage, who crossed the Alps in the fight with Rome. It covers the period from before the Punic Wars to the defeat of Carthage.

See a man living among wolves as the National Geographic Channel presents the unique story of maverick researcher named Shaun Ellis who raises abandoned wolf cubs and teaches them by example how to survive in the wild. In A Man Among Wolves, see how Shaun has given up everything to take a daring and unorthodox approach to understanding wolves' every move - living and behaving like them, howling, licking and snarling like them, even eating carcass meat like them.