Unusual Behavior: Females breastfeeding adult males

From time to time, unusual animal behavior comes to the attention of the science community. Now comes this study: “Unusual Behaviour in Grey Woolly Monkeys (Lagothrix cana): Females Breastfeeding Adult Males,” Bárbara Cartagena-Matos, Hilton Ferreira Japyassú, Mariana Cravo-Mota, and Bruna Martins Bezerra, Mammalian Biology-Zeitschrift für Säugetierkunde, vol. 80, no. 1 (2015): 59-62. (Thanks to Ig Nobel Prize […]