From iguanas to ancient dinosaurs, discover the surprising ways animals have evolved to use their tails as defense mechanisms ...

Host Robert Ellarson shows how mammals survive in specific habitats. Learn how muskrats, flying squirrels, pocket gophers, moles, and opossums adapt through fur, feet, tails, and claws. See a live ...

Lots of features can help an animal master the water: the shape of its body, its fur, a tail, feather-like arms, webbed feet, or even legs covered in tiny hairs. Many animals — and even some insects — ...