TIL Octopus have 9 brains, 3 lungs and blue blood. Each of its 8 arms has one mini-brain, and one central brain. The blue blood is because the protein, haemocyanin, which carries oxygen around the...
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Octopuses keep surprising us - here are eight examples how
https://www.nhm.ac.uk/discover/octopuses-keep-surprising-us-here-are-eight-examples-how.html#:~:text=Octopuses%20have%20blue%20blood%2C%20three,astonishing%20qualities%2C%20abilities%20and%20behaviour
Three hearts and blue blood aren't even the most unusual things about octopuses!
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The original was posted on /r/todayilearned by /u/TheQuietKid22 on 2023-06-27 06:40:46+00:00.
Original Title: TIL Octopus have 9 brains, 3 lungs and blue blood. Each of its 8 arms has one mini-brain, and one central brain. The blue blood is because the protein, haemocyanin, which carries oxygen around the octopus's body, contains copper rather than iron...