Primate Behavior	Page 11
11) The single male group structure is also found in some species of monkey. Here the large male hamadryas baboon walks at the front of a group of adult females.

Notes: A group of female hamadryas baboons follow the large adult male in a zoo enclosure.
hamadryas -- hom-uh-DRY-us
Students may notice the genital swellings on one female. These indicate sexual receptivity.
Photo © by: Nancy Staley

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