Is there an evolutionary advantage to having two heads?

This is a classic of fantasy/sci-fi stories. A creature with two heads, two brains, two distinct personalities, sharing a single body. An entire race of Siamese twins. But the question is, what environment or constraints would cause this adaptation to come about? What would be the evolutionary advantage to two distinct personalities sharing a single body?

Also, if anyone can answer this one, how would their nervous systems be wired? Which head would control which part of the body? This is an important question, as it relates to how they would evolve.

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

Is there an evolutionary advantage to having two heads?

0 comment threads

0 answers