system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
What animal cannot stick out its tongue?
gpt
A crocodile is unable to move its tongue because it is attached to a membrane in the roof of its mouth. This is beneficial because they spend a lot of time underwater and the tongue keeps water from entering the crocodile's airway by keeping the throat closed.