
Death Adder
Acanthophis antarcticus
A short, ambush-hunting elapid that resembles a viper in shape and behavior despite belonging to the cobra family.
- Venomous?
- Venomous
- Adult length
- 0.5-1.0 m (1.6-3.3 ft)
- Range
- Australia and parts of New Guinea
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Overview
Death adders are Australasian elapids that have convergently evolved a viper-like body form and ambush hunting style, despite being taxonomically related to cobras and coral snakes rather than true adders. They are among the most heavily venomous ambush predators in Australia.
Unlike most fast-moving elapids, death adders sit motionless, camouflaged, and lure prey using a worm-like tail-tip movement before striking with remarkable speed.
How to identify it
- Short, stocky body with a broad, triangular, viper-like head
- Banded pattern of reddish-brown, gray, or black crossbands
- Short, thin tail ending in a small, worm-like lure tip
- Vertical-appearing pupils in bright light due to elliptical constriction (unusual among elapids)
- Distinguished from true vipers by scale characteristics and lack of heat-sensing pits
Habitat & range
Occupies forest leaf litter, woodland, heath, and arid scrub across much of Australia and parts of New Guinea, relying on camouflage among leaf litter and low vegetation rather than active roaming.
Behavior, diet & reproduction
A sit-and-wait ambush predator, remaining coiled and motionless for long periods, twitching its tail tip to lure lizards, birds, and small mammals. Strikes with extreme speed once prey approaches. Ovoviviparous, giving birth to live young.
Frequently asked questions
Is the death adder related to true adders?
No, despite its viper-like shape it is an elapid, more closely related to cobras and coral snakes.
How dangerous is it?
It is highly venomous and considered one of Australia's most dangerous snakes due to its potent neurotoxic venom and rapid strike.
How does it hunt?
It ambushes prey by lying still and wiggling its tail tip as a lure, then striking quickly.
Where is it found?
Throughout much of Australia and in parts of New Guinea, in forest and scrub habitats.
Death Adder guides
In-depth guides for identifying and understanding Death Adder.