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生物学
Handedness found in a wild group of moor monkeys Macaca maurus in the Karaenta Nature Reserve, South Sulawesi,Indonesia
<正> Hand preference of wild moor monkeys Macaca mounts was investigated in food reaching situations at the KaraentaNature Reserve, South Sulawesi, Indonesia. The frequency picking up sweet-corn grains to take into the mouth by either hand ofmonkeys was counted directly at the feeding ground where sweet-corn grains were scattered for monkeys. Among the 20 monkeysexamined, 8 were right-handed, 8 were left-handed, and 4 were ambilateral. The results indicated the prevailed hand preferenceon individual level but not either trends of left- or right-hand preference on population level. The trend toward a higher proportionof left-handed monkeys found in Japanese and rhesus monkeys was not found. Some other characteristics found in moormonkeys are discussed in comparison with those previous findings in Japanese and Tibetan macaques in order to evaluate variationswithin the genus Macaca
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Current Zoology
2010年02期

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