International Primatological Society
Member Login 02/17/2018

The International Primatological Society was created to encourage all areas of non-human primatological scientific research, to facilitate cooperation among scientists of all nationalities engaged in primate research, and to promote the conservation of all primate species. The Society is organized exclusively for scientific, educational and charitable purposes.

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Project Monkey Island: Help needed!

Please join us in helping Puerto Rico's devastated families rebuild their community while helping them reconstruct the desperately needed infrastructure on 'Monkey Island' - a tiny island off Puerto Rico's eastern shore and home to over 1,500 free-roaming rhesus monkeys that has been a crucial site for scholars all over the world to study their behaviours since 1938! With the docks destroyed, countless trips to the island is the only way to get hundreds of pounds of food to the monkeys everyday because the small motor boat only holds a few bags of food at a time.

These daily efforts include clearing the island of debris and rebuilding the fresh water collection systems. All this consumes the day, slowing everyone's progress in rebuilding their own homes to a crawl. They need our help! So please visit to find out how you can help - donate, volunteer, or sponsor a giving package. To donate to #projectmonkeyisland, visit

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Featured Articles in the International Journal of Primatology

Technological Response of Wild Macaques (Macaca fascicularis) to Anthropogenic Change

Lydia Luncz, Magdalena Svensson, Michael Haslam, Suchinda Malaivijitnond, Tomos Proffitt, & Michael Gumert

Anthropogenic disturbances have a detrimental impact on the natural world; the vast expansion of palm oil monocultures is one of the most significant agricultural influences. Primates worldwide consequently have been affected by the loss of their natural more.

You are Not Welcome: Social Exchanges between Female Spider Monkeys (Ateles geoffroyi)

Juan Carlos Riveros, Colleen M. Schaffner, & Filippo Aureli

Group living leads to competition for food between group members. Two types of intragroup food competition may occur: scramble competition, in which all group members use the same resource, such that feeding opportunities are... read more.


Grantee spotlight

Sleeping site seletion of Bale monkeys (Chlorocebus djamdjamensis) at Kokosa forest fragment in southern Ethiopia

Addisu Mekonnen

Sleeping site selection is an important aspect in primate behavioural ecology, where safe sleeping sites and trees are crucial for individual survival and fitness. Several hypotheses have been proposed for sleeping site selection of many primate species. Nothing is know, however, about the sleeping site selection of the little-known, endemic, bamboo-eating Bale monkeys in southern more


Mating strategies and reproductive endocrinology of female lowland woolly monkeys (Lagothrix logotricha poeppigii): Implications for female mate choice in a promiscuous primate.

Laura Abondano

Research update: Woolly monkey mating season and the perks of field work in the Amazon rainforest.

The Amazon is a notoriously wet and humid place, I mean it's called a RAINforest afterall. However, between the months of July and August our field site recieves the least amount of rainfall of the year and it can get really hot! Perhaps this is why our study subjects, Woolly more


Adaptations for insectivory in digestive enzymes of new world primates.

Mareike Janiak

My research looks at enzymes that are produced in the guts of primates. All animals produce these enzymes to help them digest the foods they eat and I am trying to figure out if different primates have specialized enzymes depending on what foods they eat on a regular basis. more






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