Snakes eat not only mammals and birds but also other reptiles, such as frogs and even other snakes, said Zug, who was not involved in the new study.

祖格，其并未参与这项最新研究，说：蛇不仅吃哺乳动物和鸟，也吃其他爬行动物，像青蛙甚至其他蛇。