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The Octopus has three hearts. Two branchial hearts each p... | funfact.wiki | funfact.wiki
The Octopus has three hearts. Two branchial hearts each push blood through one of its two gills to load it with oxygen, while a third systemic heart circulates the oxygen-rich blood through the rest of the body. The trio is thought to make up for the low efficiency of its blue blood.
  • Octopus
  • Heart
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