Truly, everything in Australia wants to kill you. Dr. Marina Hurley has done extensive research on the “stinging tree,” which injects poison into your skin via tiny hypodermic needles. The poison is highly stable, so it can continue to sting for months or even years later. One-hundred-year-old dried botanical specimens STILL have the ability to sting.

The sting is so painful that it’s killed dogs, driven horses off cliffs, and made one army officer (who’d used a leaf to wipe his arse with) to blow his brains out with a shotgun. Another man had to be strapped to a hospital bed for three weeks after falling into a clump of it. You can even BREATHE these needles because, of course, they also fly through the freakin’ AIR.