I don't know anything about raccoons. The jokes about spiders and snakes are based on the most highly venomous type of each living in Australia, and other deadly things, besides sharks, living in the Australian seas.
The feral lions came from a joke about a news story, that I think Clo shared a few years ago, about feral lions loose somewhere and I comment I made about it.
The jokes about emus, comes from a real life piece of Australian history, and I'm not even the first person to joke about this in COTT.
But thanks for pointlessly targeting me, again.