Here's why:
* Dietary Needs: Sugar gliders require a diet rich in protein and calcium, which they get from insects. Earthworms, while containing some protein, don't provide the same nutritional value.
* Digestive System: Sugar gliders have a specialized digestive system designed for breaking down chitin (the hard exoskeletons of insects). Earthworms, with their different composition, might not be as easily digested.
* Safety: It's uncertain whether earthworms pose any health risks to sugar gliders.
It's best to stick to a diet of commercially prepared food specifically formulated for sugar gliders, supplemented with fresh insects like crickets, mealworms, and silkworms.
If you're unsure about any foods to offer your sugar glider, consult a veterinarian specializing in exotic animals.