The Tricolor Hognose Snake (Xenodon pulcher), also known as the False Coral Snake, is an intriguing species native to South America, particularly thriving in the Chaco bioregion. This species can be found across several countries, including Bolivia, Paraguay, northern Argentina, Chile, and parts of southwestern Brazil. As its common name suggests, this snake exhibits bright and striking coloration similar to that of a coral snake, with alternating bands of red, black, and white or yellow. This mimicry serves as a defense mechanism known as Batesian mimicry, where the Tricolor Hognose imitates the appearance of the venomous coral snake to deter predators. Despite its venomous-looking pattern, the Tricolor Hognose Snake is not harmful to humans, as it is rear-fanged and its mild venom is primarily effective on small prey like amphibians and reptiles.

Apart from its vibrant coloration, the Tricolor Hognose Snake is also fascinating for its unusual diet and feeding behavior. Unlike other hognose snakes that primarily feed on toads, this species has a broader diet that includes small amphibians, lizards, and occasionally small mammals. It is known for its specialized hunting technique, which involves using its slightly upturned snout to burrow and root through leaf litter and soil to uncover hidden prey. This foraging strategy, combined with its ability to flatten its body and emit a foul-smelling musk when threatened, makes the Tricolor Hognose Snake a master of both stealth and deception in the wild. These unique adaptations, along with their rarity in the pet trade, make them a subject of interest among reptile enthusiasts and researchers.