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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

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The really clever thing about hippos is that they produce their own sunscreen, in the form of a sticky reddish sweat.

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Hippos... have a strange effect on me... so wondrous that seeing them can make me weep. Very graceful under water, out of it they are among the fiercest species on earth and kill far more human beings than do sharks or large cats... and their natural sunscreen secretions make it look like they sweat blood...

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