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How many hearts does an Octopus have?

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How many hearts does an Octopus have?
posted Apr 25, 2017 by Arun Angadi

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three hearts
As with all cephalopods, but unlike other mollusks, octopuses have a closed circulatory system, where the blood remain inside blood vessels. Octopuses have three hearts; a systemic heart that circulates blood round the body and two branchial hearts that pump it through each of the two gills.

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answer Apr 26, 2017 by Shivaranjini
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