...David W. Macdonald; Dawn Burnham; Amy E. Hinks; Richard Wrangham Threats faced by mammalian species can be grouped into one of a handful of categories, such as habitat loss, unsustainable hunting and persecution. Insofar as they face common threats, diverse species may benefit from the same...

... is motivated by conflicting tendencies of a nonaggressive nature and may function as a regulator of social contact, thus maintaining homeostasis within and between a social group. Leontopithecus Arch display Visual signal Social contact Sexual activity Threat Conflict © 1979 S. Karger AG, Basel...