Some animals prefer to hide by becoming invisible. Discover more about animals you can actually see right through.

From Roosevelt elk to Pacific tree frogs, there is a vast array of creatures to encounter at Olympic National Park.

KEENANSVILLE, Fla — "We're looking for alligators - one thing that is unique about our body of water that we operate on, we have a lot of nesting bald eagles so almost every tour you are going to see ...

Jane Goodall, who chronicled the social lives of chimps, has died, but she leaves a lasting legacy on how we view the natural ...