The “zombie” fungus in The Last of Us, explained by a biologist. The good news: You’re safe if you’re not an ant.

In HBO's "The Last of Us," the world has been taken over by zombies controlled by a fungus, similar to how the real-life cordyceps controls ants.

Ophiocordyceps, the fungus from 'The Last Of Us,' is real. But is it as deadly? This species of fungus, Ophiocordyceps, is known for using "mind control" on insect hosts.Humans, however, are immune.