The origin of flaked-stone tool production is older than 2.58 million years ago, according to an international team of scientists working at the Bokol Dora 1 archaeological site in the Afar region of Ethiopia. Previously the oldest evidence of flaked-stone tools was younger than 2.58 million years ago.

Seven key measures of heart health may help predict future risk of cardiovascular disease, according to researchers. They added that improving these measures also may help decrease the risk of CVD in the future.

With flattened bodies, grabbing forelegs and deciduous wings, deer keds do not look like your typical fly. These parasites of deer — which occasionally bite humans — are more widely distributed across the U.S. than previously thought, according to Penn State entomologists, who caution that deer keds may transmit disease-causing bacteria.

Joan Richtsmeier, distinguished professor of anthropology, is the recipient of the American Association of Anatomists' 2019 Henry Gray Scientific Achievement Award.