Vipers execute strikes in a mere 40-90 milliseconds, significantly faster than human visual or spinal reflexes. These ballistic, pre-programmed movements, powered by specialized muscles and hinged ...

Black racer snakes are known to be fast, with some reaching speeds of 8-10 mph, which is a pretty good clip, especially for a snake. They are also large snakes with an average length of 3-5 feet.