Neandertal legacy written in Europeans’ fat metabolism
DNA from interbreeding may have helped people adjust to new environment
Fat metabolism genes inherited from Neandertals may have helped Stone Age humans survive in Europe around the time when cave lions and saber-toothed cats ranged the continent.
Remnants of these genetic gifts pop up in the genomes of modern-day Europeans and appear to tweak fat levels in their brains, researchers report April 1 in Nature Communications.
The findings are the latest in a string of studies trying to suss out the role Neandertal ancestry might have played in human evolution (SN: 3/8/14, p. 12).
