Small strepsirrhines have claws, and travel in trees by using them to hang on branches and trunks. Larger species have flat nails like humans, and travel between trees by grasping branches. Some of largest species, such as gorillas, are adapted for walking on the ground: the length of their forelimbs and hindlimbs are similar; and the shape of their forefeet and hindfeet are adapted for ground locomotion.
■References (Books, papers, Web articles, etc.)
『サル学なんでも小事典―ヒトとは何かを知るために』 霊長類研究所編 （講談社、1992）
『新・霊長類学のすすめ』 京都大学霊長類研究所編 （丸善出版、2003）
Related iCards: Three hundred primate species (Vol 1.)
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