Until another baby orangutan is born, mothers sleep in a nest with their offspring every night. When it rains very hard the orangutan makes an umbrella for themselves out of big leaves. Orangutans are semi-solitary in the wild (unlike other higher primates). After the division, the regency seat moved to Sipirok. She’s protected by round-the-clock security guards and lives with three orange orangutan friends that she met during her time with BOS. Like both African species, it has two horns; the larger is the nasal horn, typically 15–25 cm (5.9–9.8 in), while the other horn is typically a stub. Try 3 issues of BBC Wildlife Magazine for just £5!

Once a male has his cheekpads, he won’t tolerate any other adult males in his vicinity and competes with them for access to receptive females. Together with Bukit Barisan Selatan and Kerinci Seblat National Parks, it forms a World Heritage Site, the Tropical Rainforest Heritage of Sumatra.

Find out what threats orangutans face >>, Sustainable Palm Oil/Orangutan-friendly Halloween Guide. 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The national park, settled in the Barisan mountain range, is named after Mount Leuser (3,119 m), and protects a wide range of ecosystems. Research indicates that there was a genetic separation from the Sumatran orangutan about 3.38 million years ago, whereas the Tapanuli orangutans split from the Bornean orangutans approximately 670 thousand years ago. It supports approximately 15,000 plant species, 380 bird species and several mammal species. Discovered in captivity in Indonesia after being taken from the wild, she was rescued by the Borneo Orangutan Survival Foundation (BOS), who named her Alba and took care of her. [4], An isolated population of orangutans in the Batang Toru area of South Tapanuli was reported in 1939.

One, named Chantek, was toilet-trained. Where do orangutans live?

[2] In August 2019 Swiss environmental group PanEco, which is a partner in the Sumatran Orangutan Conservation Programme, dropped its previous opposition to the dam, several months after firing several researchers who opposed the new strategy. A coat of reddish-brown hair covers most of the Sumatran rhino's body.