Eastern Hognose Snake
Heterodon platirhinos • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Dipsadinae, Genus: Heterodon, Species: Heterodon platirhinos
Eastern North America, ranging from southern Ontario, Canada, through the eastern United States from New Hampshire to Florida, and west to Texas and Minnesota.
Look up Eastern Hognose Snake in the Snake Encyclopedia →Venomous Status
Mildly venomous (Rear-fanged/Opisthoglyphous) - specialized for subduing toads.
Danger Level
Harmless/Low Risk; they rarely bite humans even when handled, preferring dramatic defensive displays like playing dead.
Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Dipsadinae, Genus: Heterodon, Species: Heterodon platirhinos
Conservation
Least Concern (IUCN), though populations are declining in certain northern parts of their range due to habitat loss and decline in toad populations.
Physical Description
Variable coloration (gray, brown, tan, or orange) with dark dorsal blotches. This specimen shows large irregular dark brown blotches on a lighter tan background. Features include heavily keeled scales and a characteristic upturned (spade-like) snout.
Size & Dimensions
Specimen appears to be an adult or sub-adult based on body girth. Typical adult length ranges from 50 to 84 cm (20-33 inches), with a maximum of about 115 cm.
Habitat
Found in areas with sandy soils, including woodlands, coastal plains, and river valleys. High preference for open habitats where they can burrow; commonly found in pine forests and fields.
Behavior & Temperament
Famous for elaborate defensive displays including flattening the neck like a cobra, hissing loudly, and eventually feigning death (thanatosis) by flipping onto its back with its tongue out.
Diet & Feeding
Specialized carnivore primarily feeding on toads (Anaxyrus spp.). They use enlarged rear fangs to puncture inflated toads and have specialized adrenal glands to neutralize toad toxins.
Reproduction
Oviparous (egg-laying). Females lay clutches of 8 to 40 eggs in early summer, which hatch in late summer or early autumn.
Venom Profile
Mildly toxic saliva specifically adapted for amphibians; contains proteolytic enzymes. It is not considered medically significant to humans.
Look-alikes
Often confused with Rattlesnakes (Crotalus spp.) or Copperheads (Agkistrodon contortrix) due to blotched patterns and neck flattening, but distinguishable by the upturned nose and round pupils.
Conservation Status
Least Concern (IUCN), though populations are declining in certain northern parts of their range due to habitat loss and decline in toad populations.
Cultural Significance
Often referred to as the 'puff adder' or 'blowing viper' in folklore, they are frequently killed by people who mistake their defensive posturing for aggression.
Notable Features
The most unique feature is the upturned rostral scale used for digging in sandy soil and its highly ritualized death-feigning behavior.