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International31 décembre 2011
© Flickr/Jeffpro57Bonjour papa
A la rencontre de LUCA, notre ancêtre à tous
Il y a 3 milliards d'années, le méga-organisme régnait sans partage sur les océans primitifs. Il serait à l'origine de toutes les formes de vie sur Terre : humains, animaux, plantes, champignons...
