"I thought my eyes were playing tricks on me." Experts thrilled as photographer captures 'once-in-a-lifetime' footage of rare bird: 'It was so surreal' first appeared on The Cool Down.

Many of the world’s most fascinating archaeological sites are overshadowed by their more famous neighbors, leaving countless ...

Silent wings, razor-sharp talons, and killer precision—these apex aerial predators rule the skies. Here are the world’s ...

Here’s how a cliff-clinging population on a remote volcanic stack rewrote extinction for one of the world’s rarest insects.