Heterodon simus, commonly known as the Southern Hognose Snake, is a small, burrowing snake native to the southeastern United States. It is characterized by its upturned snout, which it uses to dig in sandy soils. The snake exhibits unique defensive behaviors, including playing dead when threatened. Its coloration varies from brown to gray with darker blotches, providing excellent camouflage in its sandy habitat.

Heterodon simus, commonly known as the Southern Hognose Snake, is native to the southeastern United States. Its geographical distribution primarily includes the coastal plains of North Carolina, South Carolina, Georgia, Florida, Alabama, and Mississippi.

The Southern Hognose Snake typically inhabits sandy soils in open pine forests, sandhills, and dry, well-drained habitats. These areas often have a warm, temperate climate with distinct seasonal variations, including hot summers and mild winters.

Heterodon simus is adapted to a fossorial lifestyle, spending much of its time burrowed in loose, sandy soils. This ecological niche allows it to hunt for its prey, primarily amphibians like toads, which it subdues using its unique upturned snout to dig in sandy substrates. The snake is also known for its defensive behaviors, such as playing dead when threatened.