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beirut-band » beirut-band » Ma 1ère rubrique » Neandertal Armement Lacked projectile Advantage

Neandertal Armement Lacked projectile Advantage

Un trio de nouvelles etudes sur les armes prehistoriques suggere Neanderthals fait des armes sophistiquees et des outils - dont la premiere collant adhesif - mais ils n'avaient pas le projectile d'armes possedees par l'homme au debut.

Le manque de technologie, avec le changement climatique et de la concurrence avec la fleche de tir humains, mai ont contribue a la Neanderthals' eventuelle extinction.

« Bien que nous ne proposons pas que les humains modernes ont ete de diriger les armes contre le projectile Neandertaliens, il est certainement possible que, parfois, ils l'ont fait", Steven Churchill, co-auteur de l'un des documents, a declare a Discovery News.

Churchill, un professeur agrege d'anthropologie evolutive a l'Universite Duke, et son collegue Jill Rhodes Neandertal fossiles par rapport a celles de la prehistoire et l'homme moderne, en mettant l'accent sur l'epaule et le coude.

« Lorsque les frais generaux engages dans l'activite de lancer, comme lancer une balle de baseball, ou une lance, ce qui augmente le mouvement des muscles du bras et donne plus de force et de vitesse a la jeter », a dit Rhodes, d'un assistant professeur d'anthropologie a Bryn Mawr College .

Elle a explique aux Nouvelles de decouverte que les athletes modernes, comme les lanceurs de baseball et les joueurs de handball, font souvent preuve d'une caracteristique de deplacement vers l'arriere a l'articulation de l'epaule. Habituellement, une seule commune de cette montre, car la plupart des gens ont prefere jeter bras.

Les anthropologues trouve ce temoin caracteristique du squelette dans le debut de l'ere moderne europeenne fossiles, mais pas dans les Neandertaliens. Les resultats sont publies dans le present numero du Journal of Human Evolution.
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