Scientists have long debated how modern humans evolved. For decades, most researchers agreed that Homo sapiens came from one ancestral group in Africa, dating back 200,000 to 300,000 years. But new ...

Chimpanzees, along with bonobos, are humans' closest living relatives. In fact, you may have heard that humans and chimps share 98.8% of their DNA. But is this actually true? And what does "similar ...

Work has begun on something once-unthinkable: creating human DNA from scratch. Artificial DNA has long been an ethical minefield, with fears of a generation of ‘designer babies’ with pick ‘n’ mix ...

Some of your most important life partners are the mitochondria that power all your cells. You and these little cellular powerhouses are in a 1.5-billion-year-old evolutionary relationship—but ...