Say a snake-person was between fifteen and eighteen feet long on average (this includes the "human" part of the body). That's around the length of an anaconda, but I imagine it would have to be thicker to support the human torso. Given that, how fast could a creature like this move?

Edit: Apparently this needs more details, so below is an example of the kind of creature I'm describing. The type of movement I'm asking about is similar to how a snake slithers, but with a human torso raised off the ground (similar to how snakes rear up). Hope that clears things up.

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This creature could be considered a mythological creature called a Lamia.

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    $\begingroup$ This is vague. Describe which parts of the human are included in snake-people. Do they have feet at the ends? Do they have arms? Do they look like a human version of Slinky Dog from the Toy Story franchise? $\endgroup$ – overlord Nov 26 '19 at 21:05
  • $\begingroup$ You need to specify what kind of environment (see flying snakes) and what kind of movement you are referring to - striking like a coiled cobra, running (we still don't know if they have massive legs and feet) or perhaps rolling like the cluster-lizards in Lexx (faster than people can run). Voting to close as too broad. (From review). $\endgroup$ – BLT-Bub Nov 26 '19 at 22:36
  • $\begingroup$ Probably second only to panda-people on a steep slope... $\endgroup$ – user6760 Nov 27 '19 at 1:33
  • $\begingroup$ Can you add a little more. How long is the tail, how tall are they, do they stay upright when moving or drop down like a snake? $\endgroup$ – Trevor Nov 27 '19 at 21:44
  • $\begingroup$ "How fast could snake-people move" Anything lower than lightspeed, if you throw them hard enough $\endgroup$ – user1258361 Nov 27 '19 at 22:28

Not all that fast.

I"ll assume from context that what you're describing is like a snake-centaur. e.g. a human torso with a snake body extending from the pelvis.

As far as locomotion is concerned, what you're describing is basically just a slightly larger anaconda that has to carry a significant portion of its body mass up off the ground (the human torso).

An actual anaconda can do about 5mph on land and 10mph in the water. Your snake person would be a bit slower than that in both cases because the human torso reduces efficiency. Something like 4mph on land and 8mph in the water would be reasonable, which would make it SIGNIFICANTLY slower than a running human (15mph) on land, but much faster than a swimming human (4-5mph).

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  • $\begingroup$ How were you confident enough to answer this question? Virtually no information was given. All they specified was the length and that it had a human torso. $\endgroup$ – overlord Nov 26 '19 at 21:10
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    $\begingroup$ A) He's assuming a snake-centaur body format. B) That's pretty much all you need. 4mph on land seems like a good guess because snake locomotion is pretty simplistic. $\endgroup$ – Halfthawed Nov 26 '19 at 22:44
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    $\begingroup$ @Halfthawed I mean, it's POSSIBLE that the OP was thinking of some other kind of bodyshape/form of locomotion, but not very likely. $\endgroup$ – Morris The Cat Nov 26 '19 at 22:47
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    $\begingroup$ Yuan-ti do come in a surprisingly large variety. But naturally I would also assume the XCOM variant. $\endgroup$ – Halfthawed Nov 26 '19 at 23:02
  • $\begingroup$ @Halfthawed wait, what's the difference? Snake head, humanoid torso/arms, snake abdomen/tail, same for both of those, isn't it? $\endgroup$ – Morris The Cat Nov 26 '19 at 23:05

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