Female ring-tailed lemurs typically mate with multiple males during estrous, so males will compete amongst themselves for the right to mate.
Female ring-tailed lemurs typically mate with more than one male during estrous, so males will compete amongst themselves for the right to mate with the females.
Sources: (Baumhofer, 2017; Cawthon Lang, 2005; Gould, Sussman, & Sauther, 2003; Sauther, 2012; Wilson & Hanlon, 2010)
Image: Mathias Appel