A Key to the Doors of Perception

Autism is traditionally considered as a severe disorder involving some combination of repetitive behavior and restricted interests, deficits in social reciprocity and language, and mental retardation. But there is a long tradition of counterpoint to such disabilities,...

Out of Jerusalem

The human haplotype map (HapMap) shows that human populations differ genetically and have been subject to strong, recent positive selection: selection ‘for’ particular genetic variants. Surprisingly, patterns of inferred selection vary markedly between the three human...