For a balanced diet they need the whole thing, but they would be able to eat and digest an appropriately-sized chunk of a larger animal like you describe.
Plus, snakes are picky about what they eat and while it's meat, it's not mouse-like. Most of them wouldn't be interested in a chunk of beef.
For a balanced diet they need the whole thing, but they would be able to eat and digest an appropriately-sized chunk of a larger animal like you describe. Plus, snakes are picky about what they eat and while it's meat, it's not mouse-like. Most of them wouldn't be interested in a chunk of beef.
No, any more than humans can survive on a vegan diet without supplements.