Ancient virus that spared humans may explain brain divergence from chimps
Also: crows make ultrafast decisions, a medieval monk recycled a Roman sarcophagus, and Van Gogh's Starry Night matches a specific date.
A family of retroviruses that infected the ancestors of chimpanzees, bonobos and gorillas millions of years ago but spared humans may have helped drive the divergence of human and chimpanzee brain development, according to a study published in Science Advances.