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Penguins are pooping pink – and when viewed from space, that’s giving scientists a new way to track how Antarctica’s climate is changing.

The color of penguin poop depends on what the birds eat. To better understand the connection between color and diet, Clemson University professor Casey Youngflesh went on some very stinky poop-sampling missions.

Now, by studying these colors in satellite photos, researchers can track what Adélie penguins across Antarctica are eating. And they're discovering that penguin diets are shifting dramatically as the climate warms.