2,175 m and utilized most quadrants of their home range every month. Behavior Diet Like most capuchins, the Kaapori capuchin is diurnal, arboreal and omnivorous. While they are omnivores, C. kaapori seem to rely heavily on fruit for nutrition. One study of the species in the wild concluded that almost 75% of their diet was composed of fruit matter such as fruit pulp or the aril of immature fruit. Other sources of nutrition which came up often in the study were arthropods (12.6%) and seeds (10.2%). From their research, the scientists concluded that the Ka'apor capuchins' diet resembles most closely that of the Sapajus genera than their fellow Cebus species. When foraging for insects, the capuchins can be observed practicing various techniques such as extracting their prey from leaves by breaking them manually, breaking branches with their teeth and hands in order to reach the ants inside and smashing snails against trees in order to crack their shells open. Social structures and mating The species is generally found living in small groups of less than 10 individuals, sometimes even alongside bearded sakis or robust capuchins. While there is very little known about the species' mating practices, one thing known is that the birth season is from June to July. The Kaapori capuchin is polygamous, and females usually give birth to one infant per birth, with twins being rare. Births usually occur every 2 years, but they may occur closer together if a baby dies, with a gestation period of 150 – 180 days. Threats The species is among the most threatened primates in the Amazon. As of 2017, the population of C. kaapori has decreased by over 80% and is categorized as Critically Endangered by the IUCN Red List. There are many reasons as to why the species is so at risk. Some researchers believe that the species is naturally rare, and that they seem to be very sensitive to even a slight disturbance in their habitat. This being said, their habitat has been more than slightly disturbed; with the strong human presence nearby comes great deforestation and environmental disturbances. Over 70% of the area's forest has been removed; one of the main reasons being for agricultural purposes such as soy plantations and pasture. In 1978, the largest hydroelectric dam in all of Brazil, was built inside the species' home range. This project had devastating repercussions on their habitat; flooding