photo by @joelsartore | Check out this bashful Andean porcupine from the @stlzoo. Porcupines are good climbers and they like to eat bark (look at those teeth!), so they spend a lot of time in trees. And contrary to popular belief, they cannot shoot their quills at predators. The quills just stand up when a porcupine feels threatened. #Follow me, @joelsartore, to see more of my recent work. #PhotoArk #joelsartore #photooftheday by natgeo

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