Four days of extreme rain killed 7% of world's rarest orangutans, study says

Key Points:

• A study reveals that extreme rain and landslides caused by Cyclone Senyar in November 2025 killed at least 58 critically endangered Tapanuli orangutans in Sumatra, amounting to about 7% of the total species population.
• The cyclone, Southeast Asia's deadliest natural disaster in 2025, also caused significant habitat destruction, further threatening the survival of this recently discovered species.
• Researchers warn that climate change is increasing the frequency and intensity of such extreme weather events, posing ongoing risks to the Tapanuli orangutans, which could face extinction if population losses exceed 1% annually.
• The Indonesian government has temporarily halted major development projects in the orangutans' habitat, providing an opportunity to assess ecological risks and enhance conservation efforts.
• Experts call for coordinated global action, including strengthened domestic protection and international support, to prevent the extinction of the Tapanuli orangutan, highlighting the crisis as a convergence of climate instability and biodiversity loss.