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 ...

This snake is one of the thousands of garter snakes, which are members of the Thamnophis genus. Garter snakes are found only in North to Central America, and the short-headed is one of the smaller ...

DESCRIPTION: The San Francisco garter snake is a slender, three-foot-long snake with an orange head, a greenish-yellow back bordered by red and black stripes, and a bright greenish-blue or turquoise ...

I followed the sound to its source, where I discovered a three-inch frog halfway down the throat of a two-foot-long garter snake. The frog’s front legs and head were sticking out of the snake ...

San Francisco garter snake (Thamnophis sirtalis tetrataenia) Known for its bright blue or greenish-blue belly, red and black stripes, and the well-known red head, San Francisco garter snake is one ...

One well-documented example of an arms race adaptation is the potent poison in the skin of the newt Taricha granulosa, which is food for the garter snake. Over time, some genetic variants of the ...