Social media users were both enthralled and repulsed by a tarantula that had become infected with cordyceps, a variation of which inspired the zombie TV show The Last of Us. The world we live in is truly terrifying, with safety concerns resulting in an uptick in American gun ownership. The natural world is just as barbaric, with creatures baring iron-tipped teeth walking about and sharks the size of busses smashing into boats. He might be a zombie fungus, but he’s a fun guyIf you thought fungi were just adorable mushrooms to inspire Mario characters, then you’d be sorely mistaken. There are ov…