Enzyme may have given us an evolutionary edge?


"'I believe that the loneliness of modern humans, in terms of being the only surviving lineage, was determined by a complex set of factors —and to some extent, chance,' Domarkienė said. 'The results of this study bring us closer to understanding how we got here.'

"'Could other behaviors, not examined in this study, also be influenced by this amino acid change?' Ju asked. 'Most importantly, what might be the functional consequences in humans? Those are questions that we and others will now try to address'."


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