This year’s outbreak of West Nile virus is one of the biggest in U.S. history, and what next year will hold is anyone’s guess, experts say.
In its monthly trip around the Earth, the moon often passes close to many interesting objects. These juxtapositions are often beautiful to look at, and help beginning stargazers to find some of the sky’s hidden treasures.
The universe just got a new speeding ticket.
The daily routines of manta rays in the Great Barrier Reef of Australia have been exposed in a new study that reveals when these graceful fish eat, cruise and visit "cleaning stations" where smaller fish nibble off their dead skin and parasites.
Fragments of a 1.5-million-year-old skull from a child recently found in Tanzania suggest early hominids weren't just occasional carnivores but regular meat eaters, researchers say.
The U.S. Southwest typically evokes images of endless deserts, without a drop of water in sight. But about 14,000 years ago, the Southwest was home to many large lakes, such as Lake Bonneville, which covered much of present-day Utah and was nearly as l…
A one-of-a-kind fossil thought for more than 100 years to be a lemur without a nose is not a primate at all, scientists have found. It's a fish.