研究發現，將獲救的孟加拉懶猴放歸野外常導致死亡。研究追蹤了被放歸的懶猴，發現9隻中有7隻在放歸後數週內死亡，其中多數是被其他懶猴殺死。這表明目前的放歸方式缺乏對棲息地飽和度與懶猴社會行為的研究。研究建議，相較於試圖修正放歸計畫，打擊非法販運與防止棲息地喪失更為有效。

A study found that releasing rescued Bengal slow lorises into the wild often results in fatalities. The researchers tracked released lorises and found that seven of nine died within weeks of release, most killed by other slow lorises. This indicates that current reintroduction methods lack research on habitat saturation and the species’ social behavior. The study suggests that combating illegal trafficking and preventing habitat loss is more effective than trying to fix the release program.

https://theconversation.com/freeing-poached-wildlife-safely-is-a-dangerous-myth-new-study-275586