Eastern Hognose Snake
Heterodon platirhinos • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Dipsadinae, Genus: Heterodon, Species: Heterodon platirhinos
Venomous Status
Mildly venomous (rear-fanged/opisthoglyphous)
Danger Level
Harmless/Low Risk; they rarely bite humans even when handled, preferring dramatic defensive displays or playing dead.
Geographic Range
Widely distributed throughout the eastern half of the United States, from southern Ontario and New Hampshire south to Florida and west to Texas and Minnesota.
Conservation Status
IUCN Status: Least Concern, though localized populations are threatened by habitat loss, road mortality, and persecution due to their resemblance to venomous snakes.
Physical Description
Highly variable coloration (melanistic, gray, or patterned as seen here). Characterized by a distinctive upturned 'hog-like' snout (rostral scale). This specimen shows a series of dark dorsal blotches on a lighter background; the head is broad and thick, and scales are heavily keeled.
Size & Dimensions
Specimen appears to be an adult around 60-80 cm. Typical adult size is 50-115 cm in total length.
Habitat
Found in various habitats with sandy or loose soils, including open woodlands, pine forests, coastal dunes, and fields. Prefers areas that allow for easy burrowing.
Behavior & Temperament
Famous for dramatic defensive displays including neck flattening (mimicking a cobra), loud hissing, and 'death feigning' (thanatosis) where the snake rolls on its back, opens its mouth, and emits musk.
Diet & Feeding
Amphibian specialist, primarily feeding on toads (Bufo/Anaxyrus). They possess enlarged rear teeth to puncture inflated toads and have specialized adrenal glands to counteract toad toxins.
Reproduction
Oviparous (egg-laying). Females lay clutches of 8-40 eggs in early summer, which hatch in late summer or early fall after about 60 days.
Venom Profile
Venom Type
Specialized mild venom localized to posterior teeth, primarily used to immobilize amphibian prey; contains weak enzymes that are not considered medically significant to humans.
AI-generated — see a qualified source if acting on this. For any snakebite, call emergency services immediately.
Look-alikes
Frequently confused with the Timber Rattlesnake (Crotalus horridus) or Copperhead (Agkistrodon contortrix) due to color and hissing. Distinguished by the upturned snout and lack of a rattle or heat-sensing pits.
Conservation Status
IUCN Status: Least Concern, though localized populations are threatened by habitat loss, road mortality, and persecution due to their resemblance to venomous snakes.
Cultural Significance
Commonly known as the 'Puff Adder' or 'Spreadhead' in American folklore. Valued by gardeners for controlling amphibian populations and by hobbyists for their unique behaviors.
Notable Features
The upturned rostral scale used for digging up buried toads and the physiological ability to neutralize Bufotoxins, which are lethal to most other predators.