Here on Mauna Loa, air is collected on a 40 meter (130 foot) tower (left) and analyzed for CO2 content. At right, a powerful laser beam is used to measure aerosols and particles in the air up to 45 km into the stratosphere.
Similar to the global trend, warmer Southern States have more venomous species than North States. Arizona is the clear winner (or loser) with over 30 species.
Missouri's venomous snakes include the copperhead, cottonmouth, western pygmy rattlesnake, massasauga rattlesnake, and timber rattlesnake. The western diamond-backed rattlesnake and coralsnake are not found in Missouri. The most common venomous snake in Missouri is the copperhead.