Â鶹Éç

Available for over a year

A huge jawbone kept by monks as a holy relic is revealed to be from the Denisovans, an ancient species of human. Biologist Frido Welker studied protein samples from the 160,000 year old bone. (Image: A virtual reconstruction of the Xianhe jawbone, Credit: Jean-Jacques Hublin, MPI-EVA, Leipzig.)