Dark coats may have helped the earliest mammals hide from hungry dinosaurs

Some sea turtles are laying eggs earlier in response to climate change

Human ancestors made the oldest known bone tools 1.5 million years ago

Biological sex is not as simple as male or female

Humans moved into African rainforests at least 150,000 years ago

500-year-old records reveal how people weathered the Little Ice Age

Researchers observe blowfly larvae mimicking termite faces with their butts

Ice with properties of both crystalline ice and liquid water that may form on alien planets has been proven to exist

After decades of drought, recent storms added back only 25 percent of the water lost from Southern California's aquifers since 2006

A study of postmortem brains shows an increase in the abundance of microplastics and nanoplastics in brain tissue.