Scientists have uncovered a surprising new picture of human origins that challenges the long-held idea of a single ancestral ...

One spring, after a long winter, an aged elephant lay dying at the bank of a small stream near the coast of what is now northern Italy. Soon after, some scavengers arrived to dine on this huge ...

Two small changes in human DNA may have played a big role in helping our ancestors walk upright, researchers say. The study, recently published in the journal Nature, found that these tweaks changed ...