A new song type originated in western Canada and then spread East, replacing the sparrows’ traditional song.
Some evidence suggests that foxes may be trying to domesticate themselves.
A new type of exotic mantis has entered the U.S. My own brood of nonnative mantises sheds light on what that means.
Narwhal vocalizations are not well understood, but Inuit whale hunters helped scientists get close enough to listen.
Long legs didn't make the massive predators faster but helped save energy during the daily grind, new research suggests.