By Phil Mercer

BBC News, Sydney



Toadzilla is the biggest cane toad ever found in Australia's Northern Territory and weighs just under two pounds, according to an environmental group.

Environmentalists have been trying to stop the spread of the poisonous creatures across the country's tropics.

The toads were introduced from Hawaii in the 1930s in a failed attempt to control native cane beetles.

Toadzilla was caught during a community hunt in Darwin. Residents have been urged to help stop the spread of this most unwelcome of pests.

Environmental group FrogWatch, which organises hunts to destroy the toads, said the creature measured 20.5cm (8 inches) and weighed 861g (1.9lb).

"He is huge. I would hate to meet his big sister," said FrogWatch co-ordinator Graeme Sawyer.

Cane toads were first released in Queensland and have since marched in their millions across the country.

They are prolific breeders. Some estimates put their number as high as 200 million.

What is beyond doubt is their effect on the environment.

They have poisoned countless native animals, including crocodiles which have died after eating them.

The population of some snakes, lizards and small marsupials have also suffered greatly.

A Northern Territory MP once said the toads were such a menace that people should attack them with golf clubs to keep them at bay.