Prehistoric Planet

A pregnant Tuarangisaurus is in distress—and her young calf can sense it—as she travels waters that are home to the oceans deadliest predators.

With its feathered body and duck bill, the eight-ton Deinocheirus wades through an Asian wetland in search of relief from pesky biting flies.

A journey through an underground cave in North America turns perilous when a young Triceratops is separated from its mother.

Trudging through a scorching desert, two young Tarchia find relief at an oasis and encounter an adult twice their size, ready to lay claim.

Deep beneath the waters surface, the worlds largest predator—the Mosasaurus—lies in wait to ambush unsuspecting prey.