A two-headed snake is a rare genetic mutation where a single snake has two distinct heads. This condition, known as bicephaly, occurs when an embryo fails to separate completely during development. Each head may have its own brain and can exhibit independent behavior, which can lead to challenges in feeding and coordination. These snakes can be found in various species, including corn snakes and king snakes. While they can survive in captivity, their lifespan is often shorter than that of normal snakes due to complications arising from their unique anatomy. Two-headed snakes are fascinating examples of nature's diversity.