Humankind's tangled shrub of ancestry now has a new branch: Researchers in the Philippines announced today that they have discovered a species of ancient human previously unknown to science.. The ...

Learn how starfish got their shape after a complicated evolutionary process, starting with an ancestor that lived 500 million ...

Until now, the phenotypic diversity among European hunter-gatherers was only known from a small number of fossils and was thought to be fairly homogeneous,” said Dr. Maïté Rivollat, lead geneticist of ...