Large penguin colonies poop so much you can see it from space—but why do scientists care? | National Geographic

6.9K views · 19 reactions | A group of scientists studying Adélie penguins in Antarcia and climate change have found that the color of penguin droppings indicates whether the animals ate shrimp-like krill (reddish orange) or silverfish (blue). The distinction is interesting because the penguin's diet serves as an indicator of the response of the marine ecosystem to climate change. https://wired.trib.al/faTDkFo  Michael Polito, © Louisiana State University | WIRED Science | Facebook

This can save your life one day. No seriously. Looking at your poop is like a window into your gut—and your overall health. Coffee ground color? Could be bleeding. Clay-colored? Your liver might be in trouble. Green? Veggie power. Bright red? Don’t ignore it. I break down what each color means, and when to worry—because your body talks. You just have to listen. Check your poop. #doctor #medicine #poop #guthealth #ibs | Dr. Joseph Salhab