![San Diego Zoo Wildlife Alliance on Twitter: "#AnimalFact Hippo sweat is red. http://t.co/D1SJsoIf3r" / Twitter San Diego Zoo Wildlife Alliance on Twitter: "#AnimalFact Hippo sweat is red. http://t.co/D1SJsoIf3r" / Twitter](https://pbs.twimg.com/media/BrQqEl-IUAAmk0Y.jpg)
San Diego Zoo Wildlife Alliance on Twitter: "#AnimalFact Hippo sweat is red. http://t.co/D1SJsoIf3r" / Twitter
![Hippos have colourful sweat. Within minutes, the colourless sweat of the hippopotamus gradually turns red, and then brown. The unstable red and orange pigments turn out to be non-benzenoid aromatic compounds that Hippos have colourful sweat. Within minutes, the colourless sweat of the hippopotamus gradually turns red, and then brown. The unstable red and orange pigments turn out to be non-benzenoid aromatic compounds that](https://i.redd.it/83m81yx03ss31.jpg)
Hippos have colourful sweat. Within minutes, the colourless sweat of the hippopotamus gradually turns red, and then brown. The unstable red and orange pigments turn out to be non-benzenoid aromatic compounds that
![Common hippopotamus with blood sweat (Hippopotamus amphibius) Their skin secretes a natural..., Stock Photo, Picture And Rights Managed Image. Pic. T06-3368755 | agefotostock Common hippopotamus with blood sweat (Hippopotamus amphibius) Their skin secretes a natural..., Stock Photo, Picture And Rights Managed Image. Pic. T06-3368755 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/a752d67a23860c529237a78bf9f1b9a8/t06-3368755.jpg)
Common hippopotamus with blood sweat (Hippopotamus amphibius) Their skin secretes a natural..., Stock Photo, Picture And Rights Managed Image. Pic. T06-3368755 | agefotostock
![Fact Maniac 在Twitter 上:"Hippos secrete a reddish oily fluid sometimes called “blood sweat” from special glands in their skin when exposed to full sunlight. 💦 #FactManiac https://t.co/raCTXILtIm" / Twitter Fact Maniac 在Twitter 上:"Hippos secrete a reddish oily fluid sometimes called “blood sweat” from special glands in their skin when exposed to full sunlight. 💦 #FactManiac https://t.co/raCTXILtIm" / Twitter](https://pbs.twimg.com/media/DXP47DOWkAApR3u.jpg)