List of the fastest snakes in the world:
Sidewinder, 18 mph
Black Mamba, 12 mph
Cottonmouth viper snake, 10 mph
Eastern Coachwhip, 10 mph
Southern Black Racer, 8 mph
King Cobra, 7 mph
Ratsnake, 6 mph
Diamondback Rattlesnake, 3 mph
Yellow-Bellied Sea Snake, 2.5 mph