Deadly Reptiles in the USA: Know the Threats in Your Backyard

22 Nov 2023

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Up to 8 feet. Found in Southeast US. Venom causes tissue damage and internal bleeding. Deadly without antivenom.

Eastern Diamondback Rattlesnake

Western Diamondback Rattlesnake

Up to 6 feet. Habitat: Southwest US. Venom induces paralysis and respiratory failure. Quick to kill without treatment.

Up to 6 feet. Spotted in Eastern/Central US. Venom causes tissue damage and internal bleeding. Deadly without swift intervention.

Timber Rattlesnake

Mojave Rattlesnake

Up to 4 feet. Habitat: Southwest US. Most venomous in North America; induces paralysis, quick fatality without antivenom.

Reaches 6 feet. Habitat: Southeast US. Venom leads to tissue damage and internal bleeding. Fatal if untreated promptly.

Cottonmouth

Coral Snake

Up to 2 feet. Found in the Southeast US. Highly venomous; causes paralysis and respiratory failure. Immediate treatment crucial.

Up to 2 feet. Habitat: Southwest US. Sole venomous lizard in the US. Paralysis and respiratory failure if not treated promptly.

Gila Monster

Alligator Snapping Turtle

Up to 3 feet. Southeastern US. Strong jaws can crush bones. Aggressive and dangerous, can cause severe injuries.