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Q&A 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 env...

12 answers  ·  posted 5y ago by Cobbington‭  ·  last activity 5y ago by Cobbington‭

Question biology evolution races fantasy-races xenobiology