The Mudpuppy are a Genus of aquatic salamander, native to the eastern United States and Canada. The best known is the Common Mudpuppy. He undergoes paedomorphosis, retaining his external gills (rather like an Axolotl). He is heavily reliant on these gills for respiration and Mudpuppies living in stagnant pools have larger, feathery gills than those inhabiting fast-flowing streams. He follows a nocturnal lifestyle and is an opportunistic carnivore, eating anything he can get in his mouth, including annelids, crustaceans, molluscs and insects.
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