The Red Sweat of Hippos by Yoko Saikawa et al.: Within a few minutes of perspiration, the colourless, viscous sweat of the hippopotamus gradually turns red, and then brown as the pigment polymerizes and may act as both an antibiotic and sunscreen. #Hippo #Sweat #Yoko_Saikawa
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
A hippo's sweat acts as a sunblock, moisturizer and an anti-biotic Hippos secrete a reddish oily fluid – sometimes called pink sweat – that contains substances which act as water repellent, sunblock, skin moisturizer as well as an antibiotic!