Animals With More Than One Heart

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22 March 2024

It seems bizarre, but there are some animals with more than one heart. And they can be found all around the world

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These multiple hearts help these animals meet their specific physiological needs, such as efficiently oxygenating their tissues

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Here's a list of a few well-known animals that have more than one heart beating to live

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Octopuses have three hearts. According to the Natural History Museum, one heart circulates blood around the body, the other two pump it past the gills to pick up oxygen

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Like octopuses, squids also boast 3 hearts for efficient blood circulation

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Hagfish are marine creatures that possess four hearts. One heart functions as the main circulatory organ, while the other three supplement its pumping power

Image: smithsonianmag.com

Earthworms are harmless, often beneficial residents of the soil. They have five hearts that pump blood through their bodies

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Cuttlefish have three hearts and blue-green blood. One heart is for the whole body while the other hearts are for each set of gills

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Cephalopods have three hearts. The two hearts push oxygen-depleted blood through the gills while the systemic heart pumps the oxygenated blood throughout the body

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Leeches have multiple pairs of hearts, which help pump blood while they are feeding

Image: Pixabay

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