major native groups of medically significant venomous snakes include rattlesnakes, copperheads, cottonmouths, and coral snakes.
Other parts of the world have different venomous species, including cobras, kraits, vipers, and several other groups.
Because regional differences are significant, advice about recognizing a snake in one country may not apply in another.
Why venomous snakes deserve additional caution
Snake venom is a complex mixture of biologically active substances.
Depending on the species, venom may affect tissues, blood clotting, nerves, muscles, or other body systems.
A bite can produce symptoms ranging from localized