Juvenile from Eco groupMale Howard from Dam groupFunny Nose with infant from Dam groupSleeping malesInfant from Eco on motorbikeFemale Scarlet feeding on flowersunknown 3View on hanging bridgeunknown 21Subadult male InoBonnet macaque infantsunknown 8unknown 12Infant Bernieunknown 1Female Ashoka from Dam groupJuvenile female Braveunknown 29unknown 15unknown 20unknown 9Female Kim with infant Kaya and juvenileunknown 16unknown 10Male unknownInfant BernieFemale Amy from Eco groupunknown 2unknown 28unknown 24Juveniles sleepingSleeping adult males from Dam groupunknown 11Juvenile female Brave resting on carFemales in Dam groupInfantsunknown 26unknown 5unknown 4Bonnet macaque infantMale Howard from Dam groupMale Frodo from Dam groupFemale Bella from Dam groupFemale Funny Nose with infant in Dam groupunknown 7Female Fanny grooming juvenileunknown 27unknown 18unknown 19Male Frodo showing threat expressionunknown 13Female Pinduli from Eco groupunknown 22Female Kim with newborn infant Kayaunknown 6unknown 17Female Spikey with infant in Eco groupunknown 23Females from Dam group sleeting togetherunknown 14Subadult female Merlin in Dam groupFemale Tess with infant Truffle from Dam groupMale Pirate grooming male Victorunknown 25

The Thenmala Macaque Project is a study of bonnet macaque (Macaca radiata) population in India. The project is based at the Institute of Human Biology and Evolution, the Adam Mickiewicz University in Poznań. Our work is carried out in collaboration with the University of Mysore (India) and University of California Davis (USA).

The aim of the Thenmala Macaque Project is to carry out research in behavioral ecology and conservation science. In addition to investigating the social dynamics and behavior of individuals, we are also interested in the effects of complex social structure and anthropogenic habitat on population dynamics and extinction.

The field work is carried out in Thenmala, Kerala, a part of the Western Ghats, in southern India. The study site consists of both human settlements and forest areas. From 2019 – 2022, we focused on maternal care and personality development, and worked with two troops comprising around 80 individually recognized macaques in total. Data collection on this aspect of the project is now complete, and we are currently in the process of publishing our results, which you can find in our News section.

Since 2022, we have shifted our focus to studying affiliative behavior and relationships between male bonnet macaques. Our main goal is to investigate how social bonds between males affect their mating success as well as their health.

Research permission in India is kindly provided by the National Biodiversity Authority and the Kerala Forest Department.