title: Seasonal influences of births and male sex skin coloration in rhesus monkeys (macaca mulatta) in the southern hemisphere.
abstract: The annual distribution of births of rhesus monkey in zoos in the southern hemisphere and changes in sex skin coloration in one colony were examined. Most (79%) of the births occurred between October and January and the sex skin reached its greatest development during spring and early summer (i.e. at the time of mating). These results demonstrate a 6-month reversal from the breeding activity of rhesus monkeys in the northern hemisphere.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001947:Breeding; D008251:Macaca / Q000502:physiology*; D008253:Macaca mulatta / Q000502:physiology*; D008297:Male; D012621:Seasons; D012727:Sex Characteristics; D012880:Skin Pigmentation