Crosswords1 min ago
How many hearts?
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What animal has three hearts?
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For more on marking an answer as the "Best Answer", please visit our FAQ.And for fascinating facts about giraffe blood pressure: http://www.chaffeezoo.org/zoo/animals/giraffeheart.html Amazing that it's only 175-200mmHg - I've seen humans with higher blood pressure than that, which is really scary.
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