Thursday, 16 August 2018

Monkeys benefit from the nut-cracking abilities of chimpanzees and hogs

Mangabey monkeys get free access to fresh tropical nuts by profiting from the nut-cracking skills of chimpanzees and the strong jaws of hogs

Date:  July 19, 2018
Source:  Max Planck Institute for Evolutionary Anthropology

To investigate the scavenging behaviour first author Bryndan van Pinxteren of the University of Amsterdam analysed all video material from the camera traps by scoring the visiting behaviour of mangabey monkeys, fowl species and squirrels to chimpanzee nut-cracking sites in relation to known nut-cracking events. Furthermore, since mangabeys are infrequently preyed upon by chimpanzees, he investigated whether they perceive an increased predation risk when approaching nut remnants. In total, 190 nut-cracking events were observed in four different areas of Tai National Park, Ivory Coast.

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