Abstract
The behavioral development of infant twin Japanese monkeys in a free-ranging group during the first 12 months of life was reported and compared with that of single born infants. There were no clear differences in mother-infant interactions toward either twin or single infants, but the twins showed a clear nipple preference. The twins spent much time in contact with and proximity to each other and as their interactions were peaceful no dominance relations between them were assumed. Each twin interacted with other infants and juveniles less frequently than did the single infants.
References
Berkson, G., 1977. The social ecology of defects in Primates. In:Primate Bio-social Development: Biological, Social and Ecological Determinants,S. Chevalier-Skolnikoff &F. E. Poirier (eds.), Garland Publishing, New York, pp. 189–204.
Deets, A. C. &H. F. Harlow, 1974. Adoption of single and multiple infants by rhesus monkey mothers.Primates, 15: 193–203.
Heinriches, W. L. &L. A. Dillingham, 1970. Bornean orang-utan twins born in captivity.Folia Primatol., 13: 150–154.
Koford, C. B., P. A. Farber &W. A. Windle, 1966. Twins and teratisms in rhesus monkeys.Folia Primatol., 4: 221–226.
Kurokawa, T., 1974.Haha to ko: Kozaru no kodohattatsu (Development of behavior in wild Japanese monkeys).Anima, 15: 31–35. (in Japanese)
Matsui, T., 1979.Futagozaru wa genkini sodatta (The twin Japanese monkeys survived).Monkey, 23: 6–15. (in Japanese)
Nakamichi, M., H. Fujii &T. Koyama, 1983. Behavioral development of a malformed infant in a free-ranging group of Japanese monkeys.Primates, 24: 52–66.
Rosenblum, L. A. &K. P. Youngstein, 1974. Developmental changes in compensatory dyadic responses in mother and infant monkeys. In:The Effects of the Infant on Its Caregiver,M. Lewis &L. A. Rosenblum (eds.), John Wiley & Sons, New York, pp. 141–161.
Spencer-Booth, Y., 1968. The behaviour of twin rhesus monkeys and comparisons with the behaviour of single infants.Primates, 9: 75–84.
Author information
Authors and Affiliations
About this article
Cite this article
Nakamichi, M. Development of infant twin Japanese monkeys (Macaca fuscata) in a free-ranging group. Primates 24, 576–583 (1983). https://doi.org/10.1007/BF02381690
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02381690