Although, the Bornean orangutan is not "critically endangered" like its cousin the Sumatran orangutan, it is still considered "endangered" by the International Union for the Conservation of Nature (See the IUCN Red List). There are as many six times the number of Bornean orangutans than there are Sumatran orangutans living in the wild, but the Bornean species is considered to have less genetic diversity, which itself is detrimental to preserving this island population of great apes.
The Bornean orangutan is also less social and less arboreal than the Sumatran orangutan, but both species of red ape are just as impressive to observe and study in nature. There are few species as beautiful as orangutans, and few places as beautiful as the mountainous jungles of Borneo.
The orangutan is a keystone species, and according to Cleary, losing them would have a significant impact on other threatened and endangered forest dwelling species. Hence, she and Peace4Animals have challenged people to stop palm oil companies from destroying the rainforests in the region.