Non-Venomous. North American racers are not dangerous to people or pets, but they will readily bite to defend themselves. Racers are not aggressive and avoid direct contact with people and pets. Virtually all bites occur when the snakes are intentionally molested.

When approached, racers will typically flee for shelter, relying on speed and agility to avoid capture. However, if they are cornered, both juveniles and adults will strike at the attacker and rapidly vibrate the tip of the tail, which produces a buzzing sound in leaf litter. If grabbed or pinned, they will readily bite the attacker. Nonetheless, these snakes are not aggressive, and striking is only used in defense as a last resort.

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North American Racers are opportunistic and diurnal predators with a diet as varied as their choice of habitat. They are known to feed on small mammals, birds and their eggs, lizards, turtles, snakes, frogs, salamanders, fishes, insects and spiders. In Florida, frogs, lizards, and small snakes make up the majority of their diet. Despite their scientific name (Coluber constrictor), racers are not true constrictors and overpower their prey by simply grabbing it in their jaws and pressing it against the ground until it stops struggling or by quickly swallowing it alive.

Juvenile North American Racers are often mistaken for pygmy rattlesnakes. Juvenile racers are long and pencil thin, whereas pygmy rattlesnakes are much thicker for their length. As always, if you are not 100% positive of the identification of a snake, it is best for everyone involved to leave it alone.

Burbrink, F.T, F. Fontanella, R.A. Pyron, T.J. Guiher, and C. Jimenez. 2008. Phylogeography across a continent: the evolutionary and demographic history of the North American racer (Serpentes: Colubridae: Coluber constrictor). Molecular Phylogenetics and Evolution 47(1): 274-288. DOI: 10.1016/j.ympev.2007.10.020

The North American racer averages 23 to 60 inches in length. Its color is variable, and the back may be brown, gray, olive, dull green or dull blue. The chin is white, throat yellow or white and the belly yellow-white to dark slate. Scales are smooth.

Description: A slender black snake measuring 36-60 inches. Black racers are glossy black on the top and bottom with a white throat and chin. Young racers are patterned with brown or reddish patches on a lighter base of gray. 589ccfa754

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