Just one example: Australia has a wide variety of mammals (mostly marsupials, e.g. kangaroos). NZ has very few native mammals, but it does have a huge assortment of unusual native birds. (Indeed, birds fill a lot of ecological niches that mammals normally do.) In fact, there's an ongoing effort to get rid of all non-native mammals: http://www.newyorker.com/magazine/2014/12/22/big-kill
Finally, the "all the Animals in Australia want to kill you" idea is popular and kind of amusing, but hugely overblown. Yes, there are deadly animals but you typically have to be doing something unusual or silly to encounter one in a dangerous way. Plus there's no poison ivy...
(although Wikipedia includes sea mammals, such as dolphins and sea-lions as well.)
I am surprised we are still allies.
True everywhere except the far north (North Queensland, Northern Territory and the top end of Western Australia) where there are saltwater crocodiles.
In that part of Australia, unless there's a sign saying otherwise, assume any body of water has a crocodile in it, watching you :)
You're more likely to die from cold exposure (I got very chilled one time) or crossing a river. Sandflies and spear grass will annoy you at times but they won't kill you.
Sea based, the usual sharks, sting rays etc. But as most countries attacks are pretty rare.
Your far more likely to get into trouble by either falling, getting lost, or not having suitable gear with you.
New Zealand has amazing bush and a network of very basic huts, and it's well worth visiting if you like hiking and camping. Personally I think The Southern Alps provide the best hiking in the world, which is why I live here.
So welcome, but come with respect. Please don't go alone, and learn about how - and more importantly when not to - cross rivers.
People who go wandering into the outback (think Death Valley a few times the size of Europe) or swimming in hidden rips are more likely to end up on the news for the wrong reasons than being randomly eaten by a croc.
I don't think there had been a spider death in Australia for decades. Snake deaths happen occasionally but almost always because some kid is running into long, dry grass in summer. Recently a NZ woman was killed by a croc on the beach after ignoring explicit warnings and running around drunk during their feeding time - in a remote far north rainforest.
Sharks are present and dangerous though, another reason to be mindful before jumping into the clear blue ocean.
http://www.stuff.co.nz/taranaki-daily-news/news/80026544/Ven...
Far more of us get eaten by sharks than killed by spiders/snakes/crocs combined.