Two-headed snakes often have one head that is slightly more developed than the other, and the heads have been known to fight each other over food, not realising that whatever they eat is heading to the same digestive system. ... Keeping two-headed snakes alive can pose problems.

Do two-headed snakes fight each other?

It's said that each of us is his or her own worst enemy. That's especially true when you're a hungry, venomous snake with two heads. ... Two-headed serpents are known to fight themselves over who gets to swallow prey, and these animals can have trouble coordinating their movements when responding to danger.

Do snakes with more than one head exist?

The addition of another head makes for a confusing time for some snakes. The two-headed monsters of myth may have a basis in reality. Two-headed snakes are rare but not unheard of, and one recently found in Spain is giving scientists an opportunity to study how the anomaly affects their ability to hunt and mate.