This Small Tweak To Brain Chemistry May Have Given Homo Sapiens The Competitive EdgeA tiny tweak in our brain chemistry may have been the secret weapon that gave Homo sapiens the edge over Neanderthals and Denisovans, a new study hints.The heart of this idea lies in an enzyme called adenylosuccinate lyase, or ADSL, which is involved in the synthesis of purine, a fundamental building block of...
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