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0 sats \ 1 reply \ @ch0k1 20 Sep \ on: Fun Fact Friday - Best Fun Fact Gets 10,000 Sats meta
Octopuses have three hearts and blue blood! Two hearts pump blood to the gills, while the third pumps it to the rest of the body. Their blood is blue because it uses copper-based hemocyanin to carry oxygen, which works better in cold, low-oxygen environments.
My octopus has a heart in each of his leg-arm thingies.
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