

Snakes
Poisonous snakes
Copperheads
Rattlesnakes
Cottonmouths
Coral Snakes
Of the many kinds of snakes found in the United States, only the following are harmful: rattlesnakes, copperheads, cottonmouths, coral snakes, and sea snakes. The latter group lives only in the oceans. All poisonous snakes, except coral snakes and sea snakes, belong in a group called pit vipers.
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