Poisonous Snake Bites
The U.S is home to many poisonous snakes, including these four. Bite symptoms may include severe burning pain at the bite site, swelling that spreads out from the bite, weakness, trouble breathing, and changes in heart rate. Bite severity depends on many factors, including the amount of venom injected, bite location, and a person's age and health. Seek immediate medical care if you think you've been bitten by a poisonous snake.
Pictured here (clockwise from top left): coral snake, rattlesnake, water moccasin, copperhead.