Klyde O'Scope
Chameleon Enthusiast
Why... because there's no accounting for taste!Why on Earth would he want to eat those tiny bugs when he can have ANYTHING else.
https://en.wikipedia.org/wiki/Geophagia
Geophagia is widespread in the animal kingdom. Galen, the Greek philosopher and physician, was the first to record the use of clay by sick or injured animals in the second century AD. This type of geophagia has been documented in "many species of mammals, birds, reptiles, butterflies and isopods, especially among herbivores".
https://en.wikipedia.org/wiki/Zoopharmacognosy
Zoopharmacognosy is a behaviour in which non-human animals apparently self-medicate by selecting and ingesting or topically applying plants, soils, insects, and psychoactive drugs to prevent or reduce the harmful effects of pathogens and toxins.
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An example of zoopharmacognosy occurs when dogs eat grass to induce vomiting. However, the behaviour is more diverse than this. Animals ingest or apply non-foods such as clay, charcoal and even toxic plants and invertebrates, apparently to prevent parasitic infestation or poisoning.
Whatever the reason, I think it would be prudent to do whatever is necessary to discontinue and dissuade the behavior in order to prevent impaction, which can be very serious.
Then I would get the animal to a herp vet ASAP.
Just my $.02