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There are three types of orangutans left in the world. The Bornean, the Tapanuli and the Sumatran. It’s believed that there are only 14,000 individual Sumatran orangutans left in the wild.
The Sumatran orangutan (Pongo abelii) is one of the three species of orangutans. Critically endangered , and found only in the north of the Indonesian island of Sumatra , it is rarer than the Bornean orangutan but more common than the recently identified Tapanuli orangutan , also found in Sumatra.
The number of Bornean orangutans has decreased by more than 60% in 60 years, and the population of the Sumatran orangutan has decreased by 80% in the last 75 years. [2] It is estimated that between 1999 and 2015, the population of Bornean orangutans has decreased by over 100,000.
A 2017 genome study found that the Bornean and Tapanuli orangutans diverged from Sumatran orangutans about 3.4 mya, and from each other around 2.4 mya. Millions of years ago, orangutans travelled from mainland Asia to Sumatra and then Borneo as the islands were connected by land bridges during the recent glacial periods when sea levels were ...
In June 2022, a male Sumatran orangutan named Rakus sustained a facial wound below the right eye, apparently during a fight with another male orangutan at the Suaq Balimbing research site, a ...
Scientists working in Indonesia have observed an orangutan intentionally treating a wound on their face with a medicinal plant, the first time this behavior has been documented.
The Sumatran Orangutan Conservation Programme (SOCP) is a collaborative project involving Indonesian NGO Yayasan Ekosistem Lestari (YEL) - as the main implementer in Indonesia, its Swiss partner the PanEco Foundation, and the Indonesian Ministry of Environment and Forestry’s Directorate General of Natural Resource and Ecosystem Conservation (Ditjen KSDAE), under several Memoranda of ...
A wounded orangutan was seen self-medicating with a plant known to relieve pain. It's the first time an animal has been observed applying medicine to a skin injury.