So I was going off the black mamba speed at 12 mph which is the fastest a snake can move on level ground, and yes that's a sprint for a slow person or a moderate jog for most people so I guess it's a bit of hyperbole.
Sidewinders do not actually slither at 18 mph. They can only move that fast while falling down sand dunes with their classic side winding motion. Without gravity's aid they don't move that fast. I don't really think that should count or we would be rating animal speeds at their terminal velocity based of aerodynamics.
As an aside, when people say the peregrine falcon is the fastest animal on earth, this is also gravity aided as they dive bomb at over 200 mph. However many duck species are faster in level flight.
CM
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