Fun fact: penguin poop is pink.
Of course it is, you're probably thinking, because any creature as adorable as a penguin obviously poops rainbows or a reasonable facsimile.
Their diet consists mostly of krill, which are basically tiny shrimp, which explains the color. And also the smell, which is -- noticeable. And hard to get rid of, if you happen to slip on one of those snowy slopes and get it all over your waterproof pants. Everyone smelled a little like penguin by the end of the trip.