Hippopotamus sweat is red and is actually about the consistency of mucus. It helps regulate body temperature and acts as an effective sunscreen.
Fact of the Day: It was once thought that hippos “sweat blood” though in fact, hippos secrete an oily red substance from their skin which works as a sunblock, moisturizer, and protection against germs. It must be nice to make your own sun lotion and never have to buy it! #tororiverlodges #hippo #hippopotamus #africa #wildlife #nature #safari #safarilife #sunscreen #southafrica #africanature #animals #life #earth #wild #animalfacts #wildwoyages #exploreafrica
The Red Sweat of Hippos by Yoko Saikawa et al.: Within a few minutes of perspiration, the colorless, viscous sweat of the hippopotamus gradually turns red, and then brown as the pigment polymerizes and may act as both an antibiotic and sunscreen.
Did you know that hippos sweat red? Their sweat actually protects against sun damage and prevents the growth of bacteria on the skin. This properties probably evolved from the need to protect them from the harsh sunlight they spend their days in. It also helps to heal and prevent infection in wounds, which is useful in a species that fights as much as they do. Basically, they've evolved a colorful antibacterial sunscreen! Shutterfly | Science Is Awesome photo
Hippos can stand in the hot sun all day without getting a sunburn, and now researchers know why: a red-colored glandular secretion known as "hippo sweat" contains microscopic structures that scatter light, protecting the hefty mammals from burns.