Mmmm, Skippy. drool
Damn tasty, kangaroo is. And environmentally sound, despite what some people will tell you. (We've spent the last two hundred years turning Australia into an adventure park for kangaroos, then complaining that there are too many of them.)
Shrews are apparently poisonous. (Came up on another thread.)
And box-jellyfish (or cubuzoans) aren't real jellyfish, apparently. They're far too active. Of course, it doesn't matter to you if one stings you. If you notice it. (The smallest cubuzoan is arguably the most deadly, and may have killed many people without leaving any trace as they are so small. There have been 3 fatalities confirmed, but they think many people who drowned mysteriously or suffering sudden heart failure while swimming may have been victims.)
On the original story, it is unlikely that a Taipan could have killed more than two people in one go. While they are certainly in the top 8 venemous snakes in the world (they keep changing which is most, last I checked it was the Western Dugite, which was then renamed as a species of Taipan for some reason), killing one human would probably mean injecting most of its venom (not that it needs to, they're just wasteful that way), and after two strikes the toxicity is down to a survivable level, if there's any venom left at all.