Earth has already exceeded its ability to support the global population sustainably, with new research warning of increasing ...

The fossil and genetic evidence agree that modern humans originated in Africa. The most genetically diverse human populations—the groups that have had the longest time to pick up novel mutations—live ...

A recent groundbreaking study has radically altered our understanding of human evolution. Homo sapiens, traditionally thought to have descended from a single lineage, is now believed to be the product ...