The Most Venomous Snakes in North America: A Guide

North America is home to a variety of venomous snakes, ranging from the highly dangerous to the relatively benign. Understanding these different species can be important for anyone who spends time in the great outdoors. In this guide, we'll explore the most venomous snakes in North America, detailing their appearances, habitats, and the dangers they pose.

Copperhead

Copperheads are found throughout the eastern United States, and are known for their distinctive copper-colored heads. They tend to be less aggressive than some other venomous snakes, but their bites can still be extremely dangerous. Symptoms of a copperhead bite include pain, swelling, and tissue damage. In some cases, the venom can even be fatal if left untreated.

Cottonmouth

Also known as water moccasins, cottonmouths are found in the southeastern United States and are often found near bodies of water. They are highly venomous and can be aggressive when threatened, making them a particular danger for anyone who spends time near rivers, lakes, or swamps. Bites from cottonmouths can lead to severe pain, swelling, and tissue damage.

Rattlesnake

Rattlesnakes are perhaps the most well-known venomous snakes in North America. There are several different species of rattlesnake, all of which are known for their distinctive rattling sound. They range from the eastern diamondback rattlesnake to the western diamondback rattlesnake, and all can be extremely dangerous if provoked. Symptoms of rattlesnake bites include pain, swelling, and tissue damage, and in some cases, the venom can be fatal.

Coral Snake

Coral snakes are found throughout the southern United States and have distinctive red, yellow, and black coloring. While they tend to be less aggressive than some other venomous snakes, their venom is highly potent and can cause respiratory failure if left untreated. Symptoms of a coral snake bite include pain, muscle weakness, and difficulty breathing.