Storm in North Sumatra Killed Estimated 7% of Global Tapanuli Orangutan Population
A storm in November 2025 in North Sumatra, Indonesia, triggered landslides that killed an estimated 7% of the global population of the Tapanuli orangutan, the world’s rarest great ape species. Accounts differ on the exact percentage lost, with one report stating more than 5% was lost. The storm, named Cyclone Senyar according to Bangkok Post, brought over 1,000mm of rainfall over four days. The T帕
A storm in November 2025 in North Sumatra, Indonesia, triggered landslides that killed an estimated 7% of the global population of the Tapanuli orangutan, the world’s rarest great ape species. According to Bangkok Post, the storm was named Cyclone Senyar and brought more than 1,000mm of rainfall over four days. The outlet also reported that approximately 58 Tapanuli orangutans were killed and that the total wild population of the species is fewer than 800. Another report stated that more than 5% of the species was estimated to have been lost. The Tapanuli orangutan was scientifically classified as a distinct species in 2017, according to Bangkok Post. The storm also killed more than 1,000 people, according to Bangkok Post.
This account was written only from facts that survived Augur's
corroboration pass — 3 corroborated across opposed news blocs,
1 contested (attributed to both sides), 6
single-source (attributed). Nothing was added; no significance was inferred.
Model Qwen3-Next-80B-A3B-Instruct.
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