It's a bug, but I figure it qualifies. This is the Little Barrier Island Giant Weta, which is only found on Little Barrier Island (that's sort of off the coast of Aucklans, in the North Island, on the Pacific ocean side), and it's the largest species.
Spoiler in case anyone has entomophobia.
They've lived longer than the dinosaurs, barely evolving at all, and you find weta in caves, trees, under your house, some burrow underground and then conceal them with doors - one species on this island (I don't remember the name) even have tusks. You can't freeze them to death, because they just enter a state of suspended animation until the ice thaws, helping them survive this long.
Back in New Zealand when I was little we had a cat that liked to catch them and drop them on mum's face while she sleeped. They bite. I think there are some other species closely related to weta that can fly around in Australia.
In a poll I don't understand, kakapo came second to blobfish as the ugliest animal in the world. They say it's a useless parrot that isn't afraid of predators. (Which it is, but not because it's dumb - because it lived for hundreds of years in isolated New Zealand without any predators whatsoever).
Here it is, anyway: