Abstract
A case of unusually early postpartum resumption of estrous cycling (<7 months) was recorded for a young, presumably primiparous female in the M group of chimpanzees (Pan troglodytes schweinfurthii) in the Mahale Mountains National Park, western Tanzania. The female showed estrous cycling while lactating her infant, and mated with young and low-ranking males as well as with the alpha male.
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Takasaki, H., Takahata, Y., Hiraiwa-Hasegawa, M. et al. A case of unusually early postpartum resumption of estrous cycling in a young female chimpanzee in the wild. Primates 27, 517–519 (1986). https://doi.org/10.1007/BF02381896
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DOI: https://doi.org/10.1007/BF02381896