"We are committed to finding an answer and saving the Tasmanian Devil for Tasmanians and the world," Tasmanian Primary Industries Minister David Llewellyn said in a statement announcing the change in status from vulnerable to endangered.

The Tasmanian Devil is a carnivorous marsupial about the size of a small muscular dog. It has black fur, gives off a skunk-like odour when stressed, and earns its devil name for its ferocious temperament and disturbing call.

The facial cancer is genetically identical in every animal and originated from a single contagious cell line and spread throughout the population by biting during fights for food and mates.

"We are developing and implementing an insurance strategy which has established captive populations around the country, implementing wild management trials to attempt to secure wild populations," said Llewellyn.

Llewellyn said he was encouraged by the fact that some devils from western Tasmania had developed antibodies to facial tumour.

"While it is still very early days, discoveries such as this provide hope that the disease may be managed in the longer term and that devils with genetic diversity will survive it," he said.