The northern death adder (Acanthophis praelongus) is a species of venomous snake in the family Elapidae.

Though it resembles a viper, it belongs to a group of snakes that includes cobras and mambas.

The venom of the northern death adder is highly potent against the human organism.

Main effects include local pain and flaccid paralysis, death can be caused by respiratory failure.

[3] Northern death adders can be found in a wide range of habitats, including mangroves, tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands, savannas, and shrubland.