Australia also has crocodiles, box jelly fish, sharks, lethal spiders...
I don't think that I'm imagining that Australia has more species of lethal animals than any other country.
EDIT: Just to be clear, I'm not saying Australia isn't a great place to live. I've only been to Melbourne and then only for three weeks but it seemed great. There are just lots of things which can kill you there (though the Australian's have naturally got very good at stopping that happening).
Grizzly bears don't hide in relatively short grass and are very rare and limited to certain areas, and nor does America have spiders that bite your ass when you are trying to poo. Well, we might, but they aren't deadly.
Australia has poisonous snakes and America has grizzly bears -- only New Zealand can claim no deadly animals.