Their diet consists mainly of small mammals like rodents, but they also eat other small reptiles, birds, insects, and carrion. Like most snake species, garter snakes and copperheads prefer not to ...

Like water snakes, narrow-headed garter snakes are highly aquatic and eat fish. In strong river currents their namesake elongated heads reduce drag from the water as they strike out on prey. These ...

And voracious exotics like bullfrogs, which eat the snakes, have added to the species' woes. The Center launched our campaign to protect Mexican garter snakes under the Endangered Species Act in 2003.

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 ...