Introduced species can wreak havoc on native ecosystems. Many states are flooding their waterways with them.

It's not going to stay cold forever. Here's what the Old Farmer's Almanac predicts for this spring.

A new study finds Yellowstone’s ravens don’t just follow wolves but use mental “maps” to predict likely kill sites. Researchers say the birds’ memory ...

These expert picks turn a standard sailing into an all-round holiday, balancing exciting attractions on land with a sea-going adventure ...

DNA: Commercial whaling has left the bowhead whale vulnerable for many generations to come. A unique collection of ...