ANSWERS: 2
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The hippo?
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Pygmy hippos were thought to sweat blood. The clear fluid that oozes continuously from glands on the surface of the hippo's skin can look reddish in colour in certain conditions, as it picks up the reddish brown colour of the skin itself. Early explorers thought that the skin of these animals was covered in blood - that the hippo must be sweating blood! http://www.bristolzoo.org.uk/learning/animals/mammals/pygmy-hippo
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