Since the 1970s, the U.S. has lost billions of birds. We now know that those losses aren't just growing—they are accelerating ...

As ancient, hollowed trees disappear in England, one researcher and his team are engineering prosthetic nests to provide an alternative home for endangered birds.

A new study on mayflies of the genus Ecdyonurus illustrates just how multifaceted and surprising reproductive behavior in ...

To use this evidence, investigators typically must grow the larvae until adulthood in a laboratory setting and then identify ...