As their traditional dining options dwindle, the native coyotes of San Francisco are shifting what they eat. A new study reveals what's on the menu.

The hundreds of dogs that live in Chernobyl's exclusion zone have caught the attention of researchers interested in the impact of long-term radiation exposure.

In 1983 archaeologists excavating a cave in South Africa discovered an unusual femur bone. It belonged to an unspecified antelope and was found to be 7,000 years old. X-rays revealed that three ...