We worry because we are built to anticipate the future. Nothing can stop us from worrying, but science can teach us how to worry better, and when to stop worrying.
Facing an ever-increasing din of background noise from traffic and other human activities, many animals are adapting by changing their behavior or just moving to quitter locales. In turn, noise pollution is altering the landscape of plants and trees, which depend on noise-affected animals to pollinate them and spread their seeds. Some plants do worse…
A rare and highly reactive iron mineral called green rust appears to have played an important role in ancient oceans, suggest new findings, which may have implications for the formation of Earth’s early atmosphere. The research team identified green rust in an Indonesian lake where conditions mimic those of the ancient oceans, and found the…
A detailed genetic analysis has settled the question of how and when the first Americans arrived in the continent. Scientists have found that Native American populations from Canada to the southern tip of Chile arrived in at least three waves. Most are descended entirely from a single group of migrants that crossed over through Beringia,…
Everyone, no exception, must have a tribe, an alliance with which to jockey for power and territory, to demonize the enemy, to organize rallies and raise flags. And so it has ever been. In ancient history and prehistory, tribes gave visceral comfort and pride from familiar fellowship, and a way to defend the group enthusiastically…
Two years of painstaking observation on the social interactions of a troop of free-ranging monkeys and an analysis of their family trees has found signs of natural selection affecting the behavior of the descendants. Rhesus macaques who had large, strong networks tended to be descendants of similarly social macaques, according to a Duke University team…
Scientists at Denmark’s Niels Bohr Institute have figured out a cool new way to lower the temperature of hot semiconductors. In a seemingly paradoxical new study, the scientists showed that light from a laser caused the temperature of semiconductor material to drop–and not by just a few degrees. The temperature fell to -269 Celsius –…