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There are several animals that have blue blood:

  • Horseshoe crabs
  • Octopi
  • Squid
  • Cuttlefish
  • Tarantula
  • Pillbug
  • Clams
  • Snails
  • Emperor Scorpions
  • Lobsters

Generally, animals which fall under the Order Teuthida will have blue-blood, but as shown above there are exceptions. Blue blood comes about where animals have copper in their blood instead of iron.

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11y ago

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