Every time you look in the mirror, you are seeing the legacy of an extinct cousin. A small but influential fraction of your ...

Researchers have reconstructed ancient herpesvirus genomes from Iron Age and medieval Europeans, revealing that HHV-6 has ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An enigmatic skull ...

The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...

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 ...