Researchers found that ancient hominids—including early humans—were exposed to lead throughout childhood, leaving chemical ...

Engelmann says that from the beginning of the Western intellectual tradition, people thought that only humans are rational.

For a long time, evolutionary biologists have thought that the genetic mutations that drive the evolution of genes and ...

The Georgia Republican has broken with U.S. President Donald Trump on a number of policy issues in recent months.

Distinct domestic dog types could have started developing thousands of years before modern breeding, archaeologists find.

A surprising diversity of dog shapes and sizes evolved long before the Victorians began making modern breeds Modern dog breeds come in a mind-boggling array of shapes and sizes—from Chihuahua to Great ...