It was thought that birds gained an energy advantage by escaping cold winters, but new research has quashed that assumption.

Some paleontologists argue the ancient footprints found in South Korea show flight may have evolved in multiple dinosaur ...

The jack-o-lantern practice originated with the story of Stingy Jack, a character in Irish mythology who tricked the Devil ...

The Art Institute of Chicago is pleased to offer free, unrestricted use of over 50,000 images of works in the collection believed to be in the public domain or to which the museum otherwise waives any ...