RE: Red foxes (Vulpes vulpes) were introduced to Australia for sport hunting in the 19th century, but ended up being responsible for the extinction of several native species, including the desert rat-kangaroo (Caloprymnus campestris)

[oguylmz]

I think that's because they are too smart to get close to a human :P
Well yes it's bad for koalas but that's the law of nature i think. We are trying to show our mistake as foxes' mistake.
I think we care about koalas more because they can be pets and foxes cannot. It's not a fight between foxes and koalas, it's a fight between justice and ego of humanity and ego will surely win :)