According to the data considered by its authors—a team from the University of Sussex (UK) and Lund University ...

Scientists may have been dramatically undercounting the number of vertebrate species on Earth. A large analysis of more than 300 studies suggests that for every recognized species of fish, bird, ...

Most mammals wear coats of brown, black, and gray, while parrots flash brilliant reds, reef fish shimmer in electric blue, and chameleons shift between greens and golds. This disparity is not random.

SALLA, Finland – Traditional reindeer racing that's been delighting spectators for decades in Finland brought hundreds of fans to the Salla Reindeer Cup in the town of Salla this past weekend. Around ...

A University of Arizona study finds scientists are discovering 16,000 new species annually — and DNA tools may reveal ...

For nearly two centuries, a small brown frog living in Southeast Asian rainforests was considered a single, well-understood ...

Scientists say Earth could contain billions of undiscovered species, and new DNA tools may accelerate discoveries faster than ever.

Scientists have discovered that a bird long classified as a single widespread species across the Amazon Basin is in fact five distinct species, including two never before described. The breakthrough ...

New genetic research suggests a common Southeast Asian frog long believed to be one species could actually be six or seven ...

The arterial vasculature is the second most frequently calcified structure in the human body after the skeleton. Calcification of the aorta and aortic valves occurs in most individuals in westernized ...

Barry Hughes, a volunteer in the Condon Fossil Collection, opens a drawer containing the head of a saber-tooth tiger and ...