
Now I always thought these was a myth, or a rumor -- urban legend if you will. But according to National Geographic's article, "
Life is Confusing For Two-Headed Snakes" -- its definitely real. The state of Arizona was home to a 2 headed king snake that was held in captivity for nearly 17 years!
These snakes are not evolutionary creations -- rather anomalies that are comparable to Siamese twins. They can be joined at various places between their bodies, sharing throats, stomachs, or even having separate throats and stomachs and other organs.
These leads to the obvious conclusion that their existence is not just difficult -- but verily impossible. The two heads would compete for food, for different paths of travel, and for different tactics on escape from predators -- all of which making their lives that much more vulnerable.
However, what interests (makes me laugh out loud) me more is what Van Wallach, a researcher at Harvard University's Museum of Comparative Zoology has to say:
"In some snake species," he added, "the male rubs its chin against the female dorsum during courtship. As this particular snake has two heads—which may have different ideas about courting and mating—and two chins, it would be nice to find out how the two heads manage the deal and also to find out what the female's response is."
Well... I guess it would be "nice" to find out how two heads manage to elicit a response from a female... lol