Big Beasts: Last of the Giants

Traveling from Alaska to Patagonia, biologist Patrick Aryee gets eye-to-eye with grizzly bears, sperm whales and anacondas to show the crucial role big animals play in their environment.

Traveling from the reefs of Australia to the snowy steppes of Asia, biologist Patrick Aryee encounters whale sharks, Komodo dragons, orangutans and giant pandas to reveal the surprising reasons animals evolved to be giants.

Traveling across Africa, biologist Patrick Aryee tracks down great white sharks, lions, giraffes and one of the last "tusker" elephants as he explores the challenges facing the earth's megafauna today.