This is not a quoll but it is a dasyuromorph. This is a fat-tailed dunnart.

Dunnarts, like leopard geckos, store fat in their tail and eat insects. Unlike leopard geckos, dunnarts are small furry carnivorous marsupials. In case that wasn’t obvious.

On my quolliday, two of the dunnarts (they’re all males) were engaged in a dominance-submission sort of thing, but the other one decided to show me a trick.