Behavior of nursery/peer-reared and mother-reared rhesus monkeys from birth through 2 years of age |
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| Authors: | Maribeth Champoux Becky Metz Stephen J Suomi |
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| Institution: | (1) University of Wisconsin, USA;(2) Present address: Laboratory of Comparative Ethology, National Institute of Child Health and Human Development, National Institute of Health Animal Center, P. O. Box 289, 20837 Poolesville, Maryland, USA;(3) Present address: National Clinical Research Center, 6707 Democracy Boulevard, Suite 200, 20817 Bethesda, Maryland, USA;(4) Present address: Laboratory of Comparative Ethology, National Institute of Child Health and Human Development, National Institute of Health Animal Center, P. O. Box 289, 20837 Poolesville, Maryland, USA |
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| Abstract: | The behavior of 8 nursery/peer-reared and 16 mother-only reared rhesus macaques was observed between birth and 5 months of
age, with follow-up studies conducted when the animals were 10–21 months old and living in large social groups. Nursery-reared
neonates were more awake, active, and irritable than mother-only reared monkeys. From 1 to 5 months of age the nursery/peer-reared
animals exhibited a greater variety of behaviors than the mother-only reared infants, which spent the majority of the time
in ventral contact with mothers. As juveniles the groups were indistinguishable with the exception of more self-directed behaviors
observed in the nursery/peer-reared monkeys. Both rearing conditions, by virtue of their atypicality, imposed restrictions
on social development. The behavioral similarity of the juveniles while in the large social group may be a function of maturation
or due to the rehabilitative effect of the large social group. |
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| Keywords: | Rhesus macaque Behavior Rearing Infant Juvenile |
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