Take the Snakebite Quiz
They fascinate. They repel. Some pose a danger. Most are harmless.
And whether they are seen as scary creatures or colorful curiosities, snakes play important environmental roles in the fragile ecosystems of the nation's wildlife areas.
1. The most common venomous snakes in the U.S. are native to all states except:
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The most common venomous snakes in the U.S. are pit vipers. Pit vipers have triangular heads, elliptic (slit-shaped) pupils and fangs that are folded against the upper jaw while the snake is resting. The fangs rotate down and forward when the snake bites. The snake's name comes from the depression, or pit, midway between the eye and nostril on either side of the head. This pit is a special organ that senses temperature, helping the snake locate its prey. There are three main groups in this family: rattlesnakes, copperheads, and water moccasins (also called cottonmouths). Maine, Alaska, and Hawaii are the only states that do have at least one native species of venomous snake.
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