New Research Traces Origins of Human Laughter
The way humans laugh — in rapid, rhythmically timed bursts — is not uniquely ours. New research by…
7-Million-Year-Old Sahelanthropus Fossils Bolster Case for Earliest Upright Walking
For more than two decades, Sahelanthropus tchadensis — a very early (6.7 to 7.2 million years old) hominin…