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Tapanuli Orangutan

June 14, 2026

A recent cyclone in Sumatra killed approximately 58 Tapanuli orangutans ((Pongo tapanuliensis), representing about 7% of the critically endangered species.

About Tapanuli Orangutan:

  • It is a species of orangutan found in the island of Sumatra in Indonesia.
  • It is one of three known species of orangutan, alongside the Sumatran orangutan, found farther northwest on the island, and the Bornean orangutan.
  • Appearance: These species resemble Sumatran orangutans more than Bornean orangutans in body build and fur color.
  • Habitat: These are exclusively arboreal and spend most of their time high up in the trees.
  • Distribution: It lives in tropical and subtropical moist broadleaf forests that are located south of Lake Toba in Sumatra.
  • Characteristics of Tapanuli Orangutan:
    • They lead a solitary life and can be seen in pairs only when a mother is raising her young.
    • Communication: Orangutans communicate with various sounds.
    • Both sexes will try to intimidate conspecifics with a series of low guttural noises known collectively as the “rolling call”.
    • Diet: They are omnivores.
    • Reproduction: Tapanuli orangutans are one of the most slowly-maturing animals in the world.
  • Conservation Status: IUCN: Critically endangered.

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