There are 35 types of scorpions around the world. Here are a few of the most common types of scorpions you might find in the U.S.

Native to Arizona, the Arizona bark scorpion has a highly-potent venom that can cause severe symptoms. This scorpion shows up fluorescent when exposed to ultraviolet light, but is tan in color in normal circumstances. It is around 2–3 inches long and is considered to be the only lethal scorpion in the region. They thrive most in desert climates, but only have a noticeable presence in Arizona and the Grand Canyon.

These yellow scorpions can be found in Arizona and Southern California. They’re generally 5–7 inches long and sometimes have darker coloring on their backs. They also have small brown hairs that cover their bodies. These scorpions sting and although it is venomous, their venom is not very strong.

These scorpions are also sometimes called the devil scorpion. They are also found in Arizona and Southern California as well as other southern states. They are light brown in color with stripes on their backs. These scorpions are a bit smaller, at 2.5 inches in length. They are technically considered venomous but aren’t classified as dangerous.

This is the most cold-tolerant scorpion found in the U.S. It is tan with dark stripes on its back and can be found in most of the western and midwestern states near sandstone cliffs. They are also venomous but their stings aren’t very dangerous.