In the central Sahara, where sand now buries ancient lakes, scientists have pulled genetic material from 7,000-year-old mummified women and found DNA that does not match any living population. The ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...

Life has spent the past few billion years working with a narrow vocabulary. Now researchers have broken those rules, adding extra letters to biology's limited lexicon. Chemist Floyd Romesberg of the ...