My Anoles have started laying infertile/practice eggs. One that remained in their terrarium overnight had a very small (1/16-1/32") hole appear in it. Not a big deal when its infertile, but I'm wondering what did it. The hole looks very much like what the mealworms use but how would a mealworm get to a ledge on a glass wall? And if its the mealworms how do I reduce their population harming no other fauna? The Anoles refuse to even nod to. the books saying that they and slugs are food.