Mystery human species emerges from Denisovan genome

It could be evidence of an entirely new species of hominin, as yet unknown to science. Alternatively, it could be our first genetic record of one of the many species known only from their fossils.

The new hominin has left its traces in the genome of a Denisovan, an extinct hominin known to exist from a finger bone and two teeth found in a Siberian cave. Nobody knows what Denisovans looked like because there are so few fossils. But geneticists have managed to sequence their entire genome to a high degree of accuracy.

From New Scientist