title: Observations on copulation and seasonal reproduction of two species of spider monkeys, Ateles belzebuth and A. geoffroyi.
mesh_terms: D000819:Animal Communication; D000818:Animals; D003307:Copulation; D004327:Drinking Behavior; D000882:Haplorhini; D012098:Reproduction; D012621:Seasons; D012726:Sexual Behavior, Animal; D012903:Smell; D012919:Social Behavior; D013045:Species Specificity; D014556:Urine