Interpersonal tensions between colleagues can be costly for businesses. Even the specter of a threat can sap concentration, ...

Animals protect themselves from being eaten by other animals in countless ways. Some are commonplace. Others are unconventional. Camouflage and running are well-known defenses. Not being seen by a ...

Across North America, mountain lions, bears and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...

For decades, textbooks painted a dramatic picture of early humans as tool-using hunters who rose quickly to the top of the food chain. The tale was that Homo habilis, one of the earliest ...