Dietary choices by four captive slender lorises (Loris tardigradus) when presented with various insect life stages.

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The slender loris (Loris tardigradus) is a rare, nocturnal prosimian found only in the tropical rainforest of southern India and Sri Lanka. Little is known about their diet, though it is assumed that insects comprise a majority of their wild diet. Based on this assumption, captive lorises are offered a variety of insects or insect life stages; the species of insect or the life stage is often determined by what is easiest to buy or rear. Captive lorises at the Duke Lemur Center (DLC) were offered the opportunity to choose which life stage of mealworms (Tenebrio molito), superworms (Zophobus morio), or waxworms (Galleria mellonella) they preferred. The DLC captive lorises did not select the largest life stages of any insect offered. They preferred the larvae stage to the adult stage in all three insect species, and males and females had different insect species and life stage preferences.





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Clayton, Jonathan B, and Kenneth E Glander (2011). Dietary choices by four captive slender lorises (Loris tardigradus) when presented with various insect life stages. Zoo Biol, 30(2). pp. 189–198. 10.1002/zoo.20346 Retrieved from

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Kenneth Earl Glander

Professor Emeritus of Evolutionary Anthropology

Primate ecology and social organization: the interaction between feeding patterns and social structure; evolutionary development of optimal group size and composition; factors affecting short and long-term demographic changes in stable groups; primate use of regenerating forests.

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