They may be native to Tasmania but this furry pair are WA born and bred.
The yet to be named female Tasmanian devil joeys are Peel Zoo's newest additions.
Part of a nationwide breeding program to boost the endangered species' numbers, the devil siblings are among four joeys bred at the zoo this year.
Marketing manager David Cobbold said the zoo was now home to 19 Tasmanian devils with 15 joeys bred in the past two years.
Mr Cobbold said despite looking similar, the newest devil sisters had different personalities.
"They have spent the past four months in their mother's pouch so they are just getting used to their new-found freedom," he said.
"One is shy and calm while the other is a real ratbag - constantly running around and exploring."
Mr Cobbold said there had been concerns about whether the breeding program would be successful in WA because of the warmer climate, but the devils had been thriving in their new home.
"Mating season is February, March, April, when it is pretty hot here. We weren't sure if they would have enough energy to mate in the heat," he said.
"But they are doing really well. Sometimes when it is really hot though, I come out and they're all asleep in the water bowls."
About 400 years ago, Tasmanian devils were widespread across Australia but are now found only in Tasmania. That population is under threat because of an incurable facial tumour disease that has wiped out more than 70 per cent of the animals.
The Peel Zoo welcomes name suggestions for the four joeys via email on firstname.lastname@example.org or by visiting the zoo's Facebook page.