Guatemalan authorities evacuated around 1,000 people Monday after Central America's most active volcano erupted, spewing lava, ash and rocks.
By night, however, the eruption was declared over, and evacuees were allowed to begin returning to their homes.
Residents...
A team of anthropologists and evolutionary biologists affiliated with several academic institutions in the U.S., working with a colleague from the Smithsonian Institution, has found evidence of humans domesticating avocados as far back as 7,500 years...
50,000 years ago, North America was ruled by megafauna. Lumbering mammoths roamed the tundra, while forests were home to towering mastodons, fierce saber-toothed tigers...
For years, scientists have debated whether humans or the climate have caused the population of large mammals to decline dramatically over the past several...
Throughout the past 500 million years, our planet has experienced a total of five mass extinctions. One of these—the Permo-Triassic mass extinction event—led to...
