With human activity having quite an effect on the Earth, many animal species have gone extinct. Fortunately, though, that doesn't always end in tragedy.

Caves can be thought of as nature’s original prefabricated homes. Here are five animal species that choose to live in them. While the image of early humans huddled in caves has become an almost ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...