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Wild Release Can Be Deadly for Rescued Slow Lorises

Published on June 23, 2026, 8:11 p.m.
Wild Release Can Be Deadly for Rescued Slow Lorises

Topic: Environment

A new study shows that releasing rescued slow lorises into their natural habitats can be dangerous. Only two out of nine animals survived after release, and three died within just 10 days.

Slow lorises are gentle-looking primates with large eyes. Unfortunately, they are popular in the illegal wildlife trade. Conservation efforts often involve rescuing them and releasing them back into their natural habitats. However, a new study suggests that this approach can sometimes be deadly.

Researchers from Anglia Ruskin University, Plumploris e.V., and the University of Western Australia studied the fate of Bengal slow lorises released in Bangladesh. They fitted nine animals with radio collars and tracked their movements after release. The results were shocking: only two out of nine animals survived, and three died within just 10 days.

The study found that the released lorises faced serious risks due to territorial conflicts and venomous bites. The animals that died had obvious bite wounds on their heads, faces, and digits, indicating that deadly encounters with other slow lorises were responsible for their deaths.

Why It Matters

This study highlights the importance of careful planning when releasing rescued wildlife back into their natural habitats. It also emphasizes the need to understand the behavior and habits of the animals being released to ensure successful conservation efforts.

Key Facts

  • The study found that only two out of nine Bengal slow lorises survived after release, with three dying within just 10 days.
  • The released lorises faced serious risks due to territorial conflicts and venomous bites.
  • The animals that died had obvious bite wounds on their heads, faces, and digits, indicating deadly encounters with other slow lorises.
  • The study suggests that releasing rescued wildlife without careful planning can be dangerous for the animals involved.
  • Understanding the behavior and habits of the animals being released is crucial for successful conservation efforts.

Key Terms

Territorial conflicts
When different animals fight over their territories

Implications

This study highlights the importance of careful planning when releasing rescued wildlife back into their natural habitats. It also emphasizes the need to understand the behavior and habits of the animals being released to ensure successful conservation efforts.


Source: https://www.sciencedaily.com/releases/2026/03/260303201801.htm

Journal Reference:

  1. Hassan Al-Razi, Marjan Maria, Rifat Ahmmed Rabbi, Mst Sadia Afrin Shimu, Shohanur Rahman, Rejoana Sultana, Ali Akbar, Mahedi Hasan, Jahidul Kabir, Md. Rezaul Karim Chowdhury, Marcel Stawinoga, K.A.I. Nekaris. A new home is a death trap: Reinforcement at a translocation release site leads to fatalities in an endangered primate species. Global Ecology and Conservation, 2026; e04072 DOI: 10.1016/j.gecco.2026.e04072

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