With the pandemic, many people are turning to at-home workouts and walks in their neighborhoods. That's good, says Exercised author Daniel Lieberman. "You don't have to do incredible strength training ... to get some benefits of physical activity." Grace Cary/Getty Images hide caption
evolutionary anthropology
The pronounced curve of this toe bone — the proximal phalanx — from a specimen of Homo luzonensis, an early human found in a Philippine cave, looks more like it came from tree-climbing Australopithecus than from a modern human, scientists say. Callao Cave Archaeology Project hide caption
Ancient Bones And Teeth Found In A Philippine Cave May Rewrite Human History
A chimpanzee skull, at left, and a human skull. Scientists are probing why our brains evolved so differently despite many similarities. D. Roberts/Science Photo Library/Getty Images hide caption
What is in that kiss, anyway, beyond the 80 million bacteria? GraphicaArtis/Corbis hide caption
Farming helped fuel the rise of civilizations, but it may also have given us less robust bones. Leemage/UIG via Getty Images hide caption
Our popular image of Homo erectus as the proto-guy who whose human-like traits all emerged at once needs overhauling, some anthropologists say. Sylvain Entressangle/Science Source hide caption
A mother and daughter herd their yaks along a highway on the Tibetan plateau. Frederic J. Brown/AFP/Getty Images hide caption
Language may have evolved in concert with tool making. Sergey Lavrentev/iStockphoto.com hide caption
Two prominent chins meet: Cary Grant and Ingrid Bergman kiss in the 1946 thriller Notorious. Hulton Archive/Getty Images hide caption
Bonobos share a piece of fruit at the Lola ya Bonobo sanctuary in the Democratic Republic of Congo. Jingzhi Tan/Duke University hide caption