Yeah, when I Googled, I discovered that these "limbs" are only found on pythons and boas. Which makes sense because the vipers are more highly evolved, further removed from the first common legless ancestor. Venom is a more "modern" development (along with those retractable hypodermic fangs). But nothing on why slithering was advantageous. Perhaps someday we'll know... perhaps not... either way it's pretty freakin' awesome!
@John... Just because they aren't used for walking doesn't mean they don't get used at all
@John... Just because they aren't used for walking doesn't mean they don't get used at all
