Alternative end-of-life practices like water cremation and human composting produce fewer emissions and return nutrients to ...

Where does tattoo ink go in your body? There’s one particular spot.

It would be easy to envy bats, bears and hedgehogs their seasonal torpor, but research has suggested that humans once ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

A new analysis of enigmatic skulls from the Republic of Georgia suggest that Homo erectus wasn't the only human species to ...

Sleep may have evolved to help reduce DNA damage in nerve cells long before they became centralized in the brain, a study ...

A seven-million-year-old fossil may mark the moment our ancestors first stood up and walked.

Jawbones and other remains, similar to specimens found in Europe, were dated to 773,000 years and help close a gap in ...

Studying ancient sea creatures’ snoozing habits could shed light on the origins of sleep.

The way Sahelanthropus tchadensis moved has long been debated. The discovery of a small bump on the front of the thigh bone ...

The U.S. boasts more than 4 million miles of rivers, peppered with laws and regulations to protect access to drinking water ...

The world’s oceans are becoming dangerously acidic. A controversial proposal would raise the pH — by mixing chemicals into ...