Gestation Period and Twinning in Chimpanzees
- 10 April 1959
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 129 (3354) , 959
- https://doi.org/10.1126/science.129.3354.959.a
Abstract
The length of the gestation period in 118 births in a colony of chimpanzees was found to be 226.8 days, with a standard deviation of 13.3 and a range of 196 to 260 days. Six pairs of twins were born in 120 parturitions; thus the apparent twinning rate is higher than that in man.Keywords
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