Familial incidence of multiple births in a colony of chimpanzees (Pan troglodytes).

Bibliographic Collection: 
MOCA Reference, APE
Publication Type: Journal Article
Authors: Geissmann, T
Year of Publication: 1990
Journal: J Med Primatol
Volume: 19
Issue: 5
Pagination: 467-78
Date Published: 1990
Publication Language: eng
ISSN: 0047-2565
Keywords: Animals, Female, Inbreeding, Male, Pan troglodytes, Pedigree, Pregnancy, Pregnancy, Multiple, Twins

This paper describes the incidence of multiple births in the Yerkes Chimpanzee colony for a period of about 63 years. Pedigrees are presented for all multiple births. They demonstrate the recurrence of twins in relatively few family lines which can be traced back to a small number of ancestors. The findings suggest that twinning is a family trait in chimpanzees and they support the hypothesis that the incidence of multiple births is genetically influenced in this colony. In addition, a relatively high level of inbreeding may have enhanced the incidence of multiple births in these family lines. Similar findings are known from human populations.

Alternate Journal: J. Med. Primatol.
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