A massasauga is a venomous pit viper native to North America, known for its small size and rattlesnake-like appearance. It inhabits a variety of habitats, including wetlands and grasslands, and feeds on small mammals, birds, and reptiles. Despite its venomous nature, the massasauga is generally reclusive and poses little threat to humans if left undisturbed. However, caution should be exercised when encountering this snake to avoid potential bites and envenomation.