The researchers identified regions with Neandertal ancestry in over 300 individuals. They assessed sharing of segments, inferred gene flow, and looked at variation to identify candidates for positive ...
Six teeth from Homo erectus individuals who lived roughly 400,000 years ago in China have yielded enamel proteins carrying an ...
Gene flow acts as a conduit of genetic variation among populations, while local adaptation arises when selection favours alleles suited to particular environmental conditions. In natural populations ...