Some of us are part-Neanderthal and it affects how medicines work on you
The gene variants are carried by 20% of present-day Europeans
DNA from an ancient unidentified ancestor was passed down to humans living today
About 15% of these "super-archaic" regions may have been passed down to modern humans
New evidence that grandmothers were crucial for human evolution
A computer simulation supports the idea that grandmothers helped our species evolve social skills and longer lives