Endemic to New York and Pennsylvania, the Short-Headed Garter Snake reaches about 10 inches in length. It feeds on earthworms in the wild but adapts to eat amphibians and small fish in captivity.

The narrow-headed garter snake is a nonvenomous snake found in and near the cool, clear headwater streams of the U.S. Southwest. With its stripeless, grayish-colored body, it has been called “drab” in ...