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ergnamduce · 10-21-2025, 10:15 AM

An octopus has three hearts — two pump blood to the gills, and one pumps it to the rest of the body. Even weirder, the main heart stops beating when the octopus swims, which is why they prefer to crawl rather than swim — it’s less tiring!

10-21-2025, 10:15 AM	#3 (permalink)
ergnamduce Groupie Join Date: Oct 2025 Posts: 18	An octopus has three hearts — two pump blood to the gills, and one pumps it to the rest of the body. Even weirder, the main heart stops beating when the octopus swims, which is why they prefer to crawl rather than swim — it’s less tiring!