The original post: /r/askscience by /u/Brief_Advantage_1196 on 2024-10-25 17:30:32.

With Hippos being the new “memey” animal everyone shares on social media, I occasionally see videos of zoo staff putting what looks like paint or a vibrantly colored cream on hippo’s faces. At first, I thought it was something like sunscreen. But I seem to recall Hippos produce their own “sunscreen” of sorts. What am I missing? Looking it up on google didn’t yield much results.