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The authors, primarily a French group headed by Olivier Cases, described mouse pups showing “trembling, difficulty in righting, and fearfulness...frantic running and falling over..(disturbed) sleep...propensity to bite the experimenter...hunched posture...”Of all these features of disturbed development the authors chose only to highlight aggression in their paper’s title, and to conclude their account by claiming that these results “support the idea that the particularly aggressive behavior of the few known human males lacking MAOA ...is a more direct consequence of MAO deficiency.”