It's no secret that the "infected" from Naughty Dog's The Last Of Us are based on the parasitic fungus known as Cordyceps. It even formed part of the game's announcement. But hey, science, it can sometimes be a little dense. So thank Kyle Hill over at Scientific American for writing a beginner's guide to not just the fungus, but the way it's expressed in the game, a quasi-fiction that combines the "best" of the two real Cordyceps into a single killer outbreak. The Fungus that Reduced Humanity to The Last of Us [Scientific American]