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Fetal gender and aggression in pregnant stumptail monkeys ( Macaca arctoides )
Author(s) -
Nieuwenhuijsen K.,
Slob A. K.,
De Neef K. J.
Publication year - 1988
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420210308
Subject(s) - agonistic behaviour , aggression , psychology , pregnancy , fetus , developmental psychology , physiology , medicine , biology , genetics
Agonistic behaviors of pregnant female stumptail monkeys, members of a large, well‐integrated group continuously living together, were studied during 480 observation hours (over 32 months). A total of 28 pregnancies of 20 females occurred, resulting in 12 male and 16 female live infants. The main finding was a significant decline in aggression, both received and performed, during the course of pregnancy. There was no clear unequivocal effect of fetal gender on aggressive behavior of the mothers‐to‐be.