For a long time, scientists judged animal intelligence by how closely it resembled human behavior. That left a lot unnoticed.

Highways slice through forests and other habitats as if they got there first, while wildlife usually suffer the consequences. Thanks to engineering, animal crossings have reduced collisions and other ...

Add Yahoo as a preferred source to see more of our stories on Google. The US is the top destination for wildlife tourism, according to a new ranking, and much of the country's protected natural areas ...