Why Octopuses Have BLUE Blood 😱🐙
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YouTubeFacty
Why Octopuses Have BLUE Blood 😱🐙
Discover the incredible science behind why octopuses have blue blood and three hearts! Unlike humans, octopuses use copper instead of iron to carry oxygen, turning their blood blue and helping them survive in freezing, low-oxygen ocean depths. But that’s not all — their thick, copper-rich blood requires three hearts to keep it flowing ...
493 views1 month ago
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An octopus has three hearts and blue blood — and there’s a fascinating reason why. Instead of iron like humans, octopus blood uses copper to carry oxygen. That’s what makes it blue. But copper is much less efficient at transporting oxygen. So to move enough oxygen through their bodies, octopuses evolved three hearts. Two hearts pump blood to the gills to pick up oxygen, and the third pumps it to the rest of the body. But when an octopus swims, its body movement puts so much strain on circulation
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