I have a young female veiled chameleon and she eats regularly. I have recently noticed that there are a few rocks lying around at the bottom of her cage that come from the bamboo plant in her enclosure. Even more disturbing is when i actually saw her shoot for the rocks and try to swallow one and she seems to do this deliberately. I have a bearded dragon that ingests rocks too. I noticed it in his poop. Today my chameleon passed a small stone in her poop. Is this something that reptiles do in their natural environment, kinda like birds? I have covered her rock pile.