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Science18 mai 2014
© MARCEL MOCHET / AFPBonnes feuilles
Le spermatozoïde est-il devenu une espèce menacée ?
Au secours, les mutants sont parmi nous ! Saviez-vous que la taille moyenne des Français a augmenté de près de 5 cm en 30 ans, et qu'il y a désormais 15% d'obèses parmi les adultes ? Qu'une petite fille afro-américaine sur quatre commence sa puberté vers 7 ans ? Qu'à l'échelle de la planète la concentration spermatique a baissé de près de 40 % en un demi-siècle ? L'être humain est manifestement en train de changer, et à un rythme qui n'a plus rien à voir avec l'évolution darwinienne. Extrait de "Mutants", de Jean-François Bouvet, aux éditions Flammarion (2/2).
