A maneating crocodile terrorizes a town in the Philippines until a team of brave hunters captures a 20-foot-long super croc. But they begin to wonder...

Marine biologist Dr. Austin Gallagher searches for the holy grail of shark research -- the secret breeding grounds of tiger sharks.

San Francisco Bay is home to various shark species. Alcatraz guards made sure the prisoners knew it, telling stories of sharks to stop escapes.

They're the most ruthless killers on earth and out of control. A zombie-like pathogen is spreading to big cats around the world, removing their fear...

Swarms are growing in size and numbers worldwide thanks to global warming, habitat destruction and human encroachment.