At night, the nocturnal slow loris will slowly climb around in the trees searching for food. Because of a slow lorises location (habitat), it has access to many fruits, plant matter, and insects including ants and termites. Slow lorises also eat plants that produce nectar, the gum (high glucose sap from trees) and even bird eggs. Their diet makes them primary and secondary consumers. 

Majority of a slow lorises feeding is on sap (about 35%), while plants with nectar (31.7%), and fruits (22.5%) came in a close second.

Although the average weight for  Nycticebus coucang is only 3 pounds, this species is known as a heavier loris because they have extremely low metabolic rates and eat large amounts at one time. Their average basal metabolic rate (BMR) (energy burned per day at complete rest) is 1.5040 W (the rate depends on an animal’s body mass and body temperature). Most experts estimate their BMR to be about 60% higher than it truly is.     


Nycticebus coucang
has the slowest metabolism of all the other Nycticebus species. Studies have been done to determine the reason for their slow metabolism, but it has been found that it is not caused by a low energy diet. In fact, the slow loris ingests high-energy food. Birds, which have very quick metabolisms tend to eat the same type of diet. It is estimated that the true cause for their slow metabolism is from toxic insects that inhibit a lorises digestive system. The plant matter they consume can also have these effects as well.





Go to Reproduction to see how the slow loris reproduces!

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