La migration terrestre des caribous, la plus longue de la planète, les pousse, sur 5000 kilomètres, à traverser l'Arctique sauvage, du Canada jusqu'en Alaska.
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La migration terrestre des caribous, la plus longue de la planète, les pousse, sur 5000 kilomètres, à traverser l'Arctique sauvage, du Canada jusqu'en Alaska.
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