Over 700 million years ago, Earth experienced a dramatic climate event known as the Sturtian glaciation, one of the most ...

Reindeer herders in Siberia were stunned to discover a mummified Ice Age cave bear — with all of its organs intact. The 39,500-year-old specimen belonged to a species of prehistoric bears that ...

As massive glaciers scratched and scarred Earth’s rocky surface, they freed less-common minerals, which were later flushed into the seas as the ice melted into giant glacial rivers. These minerals in ...