Perhaps more powerfull animals. Like a lion.
Foxes,
foxes normally eats rats and insects
That's easy. The creature that eats zombies is a zombie-eater of course.
foxes and wolves
Racoons and foxes do
bear
foxes
foxes
foxes
foxes
One invertebrate sea creature that eats them is the Octopus. A mammalian creature that eats them is the Sea Otter.
Foxes are introduced to Australia - there is no species native to the country. And, unfortunately, nothing eats them except for birds of prey.