Why is my female tortoise biting?

Your female tortoise might be biting due to several reasons, including stress, territorial behavior, or discomfort. If she feels threatened or is trying to establish dominance, she may resort to biting as a defensive mechanism. Additionally, if she's not getting enough stimulation or if her environment is inadequate, she may exhibit aggressive behavior. Observing her surroundings and ensuring she has a suitable habitat can help address this issue.