Bears weren't always on top of the predator pecking order. The size of a small dog, the first bears found refuge in trees from larger carnivores until climate changes forced them back to the ground.

AKA: Dino Turkey Leading scientists use cutting-edge CGI to trace the extraordinary evolutionary path of the turkey, starting with one of the first dinosaurs.

50 million years ago, a hungry land animal waded in shallow sea water. Four million years later, it lived permanently in the oceans and seas of planet earth. Using cutting edge CGI, this film follows the extraordinary evolution of a land animal into the modern whale.