استمر استقال استدعاء hippopotamus sweat يمارس محتمل غير أمين
Hippo sweat: The next big thing in sunscreen?
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Sweating Blood | Science History Institute
Lake Naivasha Resort (LNR) på Twitter: "Do Hippos sweat blood? Not really. The oily red substance they secret is a moistener and sunblock. Be sure to check out some more Hippo stories
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