Rare fossils reveal what ancient Denisovans may have looked like

Whenever anything is written about the Denisovans, the word "mysterious" is almost guaranteed to appear. That is because we just don't know a lot about this extinct human group that may have lived in East Asia from at least 300,000 to 45,000 years ago and was closely related to…

It took a while, but researchers believe they now have a molecular marker to reliably spot Denisovan fossils.