Blue Blood

lukey121 | 10:45 Mon 05th Feb 2007 | Animals & Nature

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Does anyone know an animal or insect hat has blue blood?

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heathfield

Quite a few. These are animals where the oxygen in the blood is carried by a copper compund instead of the iron compund found in red-blooded animals.

Amongst the blue-blooded are, clams and mussels, squid and octopus, lobsters, crayfish, and crabs. Scorpions too. And, I think, woodlice.