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Super science

Why is octopus blood blue?

作者:TEENS
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为什么章鱼的血液是蓝色的?



That’s because there is hemocyanin (血蓝蛋白) in the animal’s blood. It makes their blood blue and gives oxygen to the octopus. It also allows the octopus to live in very low or high temperatures underwater. Humans and many other animals have red blood. That’s because we have hemoglobin (血红蛋白) in our blood.

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