Scientists used light to raise a mouse’s heart rate, increasing anxiety-like behaviors in the animal. The study offers a new angle for studying anxiety
INSTANT NEW YORK TIMES BESTSELLER A dramatically new understanding of human history, challenging our most fundamental assumptions about social evolution fr.
Recent findings suggest that some things we take for granted in human civilizations are much older than thought. Now, these findings are provisional but they are worth looking at. Some owl stones from 5,500 and 4,750 years ago may be children's.