The Western Hognose Snake (Heterodon nasicus nasicus) is known for its distinctive upturned snout, which gives the species its common name. This unique feature is not just for show; it serves a practical purpose, helping the snake dig and burrow in sandy soils found in its native range, which includes the Great Plains of North America. These snakes are fossorial, meaning they spend much of their time underground, hunting for their primary prey—amphibians, especially toads. They have specialized adaptations for this diet, including slightly rear-fanged teeth and mild venom to subdue their prey, although their venom is harmless to humans. Interestingly, Western Hognose Snakes possess a natural resistance to the toxins found in toads, allowing them to consume prey that would be harmful to many other predators.

Aside from their intriguing dietary habits, Western Hognose Snakes are also famous for their dramatic defensive displays. When threatened, they will flatten their necks and bodies, hiss loudly, and even feign strikes in an attempt to scare off predators, resembling a small cobra's hooded posture. If this bluff doesn't work, they may "play dead" by rolling onto their backs, opening their mouths, and releasing a foul-smelling musk, mimicking a decomposing animal to deter further interest. Despite these theatrical behaviors, they are considered non-aggressive and generally have a calm temperament in captivity, making them a popular choice among reptile enthusiasts.