Unlike birds whose plumage is mostly blue, the green coloring of a green bird’s feathers is primarily a combination of ...

A first-ever collaboration between the National Gallery of Art and the Smithsonian examines the birth of natural history.

The beaks of Anna's hummingbirds in California grew longer as people started hanging artificial feeders, according to new ...

Have you seen more ticks than usual lately in Delaware? You're not alone. Here's what's up with the state's tick population ...