Rattlesnake

Rattlesnakes can grow from 1 to 8 feet long, depending on the species. They all have patterned skin, but their color can vary. All rattlers have a triangle shaped head and eyes with a black slit. Rattlesnake venom is poisonous to humans, but they're not trying to hurt us. They would rather be left alone. They usually only strike if they're scared or startled.