Banded Rock Rattlesnake
Found in Arizona, New Mexico, Texas, and Northern Mexico. Moderate danger, high aggression. Conservation: Least Concern. Small size, green or purple coloration with grey banding.
Southern Pacific Rattlesnake
Native to Southwestern California and Baja California. High danger, moderate aggression. Conservation: Unknown. Size: 2 to 4.5 feet, pale brown to yellowish-brown with dark brown blotches.
Tiger Rattlesnake
Inhabits Southwestern US and Northern Mexico. Moderate danger, high aggression. Conservation: Least Concern. Size: 2 to 3 feet, grey, lavender, pink, and blue cross-pattern.
Massasauga Rattlesnake
Found in Southern Canada, Midwestern US, Northern Mexico. Moderate danger, low aggression. Conservation: Least Concern. Size: 2 to 2.5 feet, grey and tan with brownish-black spots.
Neotropical Rattlesnake
Located in Central America (Mexico, Costa Rica). High danger, high aggression. Conservation: Least Concern. Size: 5 to 6 feet, brownish-tan with dark brown diamond-like crossbands.
Timber Rattlesnake
Endemic to Eastern US. High danger, moderate aggression. Conservation: Least Concern. Size: 5 to 6 feet, brownish with yellow, black, brown, grey crossbands.
Western Diamondback Rattlesnake
Native to Southwestern US, Northern Mexico. High danger, extreme aggression. Conservation: Least Concern. Size: 5 to 7 feet, greyish-brown with diamond-shaped bands.
Eastern Diamondback Rattlesnake
Found in Eastern US. Extreme danger, moderate aggression. Conservation: Least Concern. Largest species, 6 to 8.5 feet, brownish-yellow with distinct diamond patterns.