Face to face with the woolly spider monkey. Review of faces in the forest: The Endangered Muriqui Monkeys of Brazil,by Karen B. Strier. New York,Oxford University Press,Inc., 1992, 138 pp, $49.50

During an intertroop encounter, an infanticide was observed in a population of ringtailed lemurs (Lemur catta) at Berenty Reserve, Madagascar. The killer was a male that had not been previously observed to mate with any females in the infant's troop. This observation, combined with other observations of infanticidal behavior by males at Berenty Reserve and the Duke University Primate Center, is consistent with the hypothesis that infanticide is a reproductive tactic for some male ringtailed lemurs. © 1994 Wiley-Liss, Inc.