A snake strike takes 48 to 84 milliseconds. By comparison the blink of a human eye takes about 200 milliseconds. More important it takes mammals 60 to 395 milliseconds to get their muscles moving when they are startled.

See the source article by following the link below:A snake strike takes 48 to 84 milliseconds. By comparison, the blink of a human eye takes about 200 milliseconds. More important, it takes mammals 60 to 395 milliseconds to get their muscles moving when they are startled.