WARNING: Disturbing content
Upsetting video appears to show a teenage girl forcing a quokka to vape from an e-cigarette on Rottnest Island.
The video, which was shared on social media, shows the marsupial with its mouth around the vape pen, mistakenly thinking it was being fed food.
Animal rights groups have slammed the unidentified teen's actions, which were filmed off the coast of Western Australia, on Rottnest Island which is the only place in the world you can see quokkas in the wild.
"It's completely and utterly irresponsible and unacceptable for this poor defenceless, vulnerable animal to be subjected to that kind of cruelty," Hannah Dreaver, from RSPCA WA, told 9 News.