Northern Death Adder

Scientific Name: Acanthophis praelongus

Category: reptile

Northern Death Adder

Brief Description

A highly venomous ambush predator with a short, stout body, a broad triangular head, and a thin, worm-like tail used as a lure.

Characteristics

Stout body, extremely broad triangular head distinct from the neck, rough keeled scales, and a distinct tapering tail ending in a spine-like appendage. Coloration is highly variable, typically shades of brown, grey, or reddish with darker crossbands that provide excellent camouflage in leaf litter and sandy soil.

Habitat

Found in dry eucalypt forests, woodlands, rocky areas, and coastal scrubland, often sheltering under rocks, logs, or thick leaf litter.

When to Find It

Active year-round in the tropical north, but more frequently encountered during the warmer spring and summer months, often hunting at night.

Conservation Status

Least Concern, though local populations can be affected by habitat loss and cane toads.

Ecological Role

Acts as an apex ambush predator controlling populations of small mammals, reptiles, and frogs in its ecosystem.

Easily Confused With

Common Death Adder (Acanthophis antarcticus), which is found further south and has subtle differences in scale counts and coloration; rough-scaled pythons which are non-venomous.

Observation Tips

Because of their exceptional camouflage and habit of sitting completely still rather than fleeing when approached, they are easily stepped on. Look closely at leaf litter when walking in suitable north Queensland habitats, especially at dusk or night.

Interesting Facts

Unlike most other elapid snakes that actively forage, death adders are sit-and-wait ambush hunters that wiggle their modified tail tip to mimic an insect or worm, enticing prey within striking distance.