A longitudinal study of hand preference in chimpanzees (Pan troglodytes)
نویسندگان
چکیده
منابع مشابه
Preference for human direct gaze in infant chimpanzees (Pan troglodytes).
We studied gaze perception in three infant chimpanzees (Pan troglodytes), aged 10-32 weeks, using a two-choice preferential-looking paradigm. The infants were presented with two photographs of a human face: (a) with the eyes open or closed, and (b) with a direct or an averted gaze. We found that the chimpanzees preferred looking at the direct-gaze face. However, in the context of scrambled face...
متن کاملGenetic basis in motor skill and hand preference for tool use in chimpanzees (Pan troglodytes).
Chimpanzees are well known for their tool using abilities. Numerous studies have documented variability in tool use among chimpanzees and the role that social learning and other factors play in their development. There are also findings on hand use in both captive and wild chimpanzees; however, less understood are the potential roles of genetic and non-genetic mechanisms in determining individu...
متن کاملHand use and gestural communication in chimpanzees (Pan troglodytes).
Hand use in gestural communication was examined in 115 captive chimpanzees (Pan troglodytes). Hand use was measured in subjects while they gestured to food placed out of their reach. The distribution of hand use was examined in relation to sex, age, rearing history, gesture type, and whether the subjects vocalized while gesturing. Overall, significantly more chimpanzees, especially females and ...
متن کاملA longitudinal study of urinary dipstick parameters in wild chimpanzees (Pan troglodytes verus) in Côte d'Ivoire.
We performed 796 dip-stick tests on urine from 100 wild West African chimpanzees (Pan troglodytes verus) from 4 habituated groups in the tropical rain forest of Taï National Park, Cote d'Ivoire, to establish reference values for health monitoring. Specific gravity was also measured on 359 urine samples from 62 chimpanzees. The effect of age, sex, group, month, estrus, pregnancy, meat consumptio...
متن کاملImitation in neonatal chimpanzees (Pan troglodytes).
This paper provides evidence for imitative abilities in neonatal chimpanzees (Pan troglodytes), our closest relatives. Two chimpanzees were reared from birth by their biological mothers. At less than 7 days of age the chimpanzees could discriminate between, and imitate, human facial gestures (tongue protrusion and mouth opening). By the time they were 2 months old, however, the chimpanzees no l...
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ژورنال
عنوان ژورنال: Developmental Psychobiology
سال: 2000
ISSN: 0012-1630,1098-2302
DOI: 10.1002/(sici)1098-2302(200005)36:4<292::aid-dev4>3.3.co;2-k