The Mulga snake has the largest recorded venom output of any snake. It is also the heaviest Australian venomous snake. The mulga snake is found throughout Australia, except in Victoria, Tasmania and the most southern parts of Western Australia. It is sometimes called the "King Brown" snake, but this should be avoided. The name can mislead people into using brown snake antivenom. Mulgas feed on rats, mice birds, lizards and other snakes. They are frequently active at night, especially in hot weather. Its body is uniform in colour, usually light brown, but there is some variation between individuals. The average length is around 1.5m with the record length of greater than 3m. Mulga snakes are oviparous (egg-laying). They may become aggressive and strike repeatedly if threatened.