If you were a crab, what color would you be? Crab fisherman Frank McFarland, left, holds up a rare blue-colored red king crab he caught in his commercial crabbing pots (AP photos)
If you were a crab, what color would you be?
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A rare blue-colored red king crab has been caught.

Frank McFarland found the crab in his pot July 4. The crab is being kept alive at the Norton Sound Seafood Center. People show up to have their photos taken with it.

Scott Kent, with the Alaska Department of Fish and Game, says he has no idea why the red king crab is blue. He suspects it's just a mutation.

Kent says a blue crab "turns up once in a blue moon."

Critical thinking challenge: What does once in a blue moon mean? How often is the moon blue?

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COMMENTS (60)
  • makaylah-Ros
    9/04/2014 - 02:35 p.m.

    i think once a blue moon mean it barley gets caught or seen! That crab is cool but also gross! I would love to see the crab in person!

  • makaylah-Ros
    9/04/2014 - 02:44 p.m.

    i think once a blue moon mean it barley gets caught or seen! That crab is cool but also gross! I would love to see the crab in person!

  • Kennidy-Wya
    9/05/2014 - 08:29 a.m.

    A blue moon could be real. I mean there's a red moon so maybe this crab got blue from a blue moon I wonder if the other crabs turn red when there's a red moon. It could be possible

  • aidanm-Ros
    9/08/2014 - 01:26 p.m.

    If I was a crab and I had a choose what color to be I will be green because I will blend in to seaweed.

  • nyuanm-Ros
    9/10/2014 - 12:50 p.m.

    i don't really know what once in a blue moon means but i think it means every time the moon turns in to a full moon

  • lesliaedo
    9/11/2014 - 02:53 p.m.

    Summary: An unusual blue-colored crab, has been found. The fisherman Frank McFarland found it in his pot on July 4. The strange crustacean is being kept at a Seafood Center and people are showing up to have a photo with the strange crab. It is a red king crab, that's why the expert Scott Kent cannot understand why it is blue. He thinks it may be a mutation. Kent jokes saying that a blue crab turns up during a blue moon.

    Comment: Wow! I didn't know that a blue crab was so unusual. Actually, I thought that the same as blue lobsters, blue crabs were more common worldwide. So, maybe, as Scott says, the crab is a mutation or something alike. This article is really worth to read.

  • JG2000soccer
    9/12/2014 - 01:00 p.m.

    it means that its very rare. A blue moon happens once a year. Also if I was a crab, I would want to be pink.

  • Re'neisha
    9/16/2014 - 01:00 p.m.

    if i was to be a colored i would want to be a baby blue crab. That would be awesome if you found all types of colored crabs all over the world. The phrase " once in a blue moon " means very rarely.

  • CamdenVGreen
    9/18/2014 - 04:41 p.m.

    I think it is crazy a blue crab and a blue lobster were caught in the same period of time. Looks like we have some very lucky fisherman.

  • Brett2828
    9/23/2014 - 02:39 p.m.

    This so crazy. I always thought that king crabs were blue. I have eaten so much king crab and it always tasted so good. It would be so cool to eat a blue crab and sea what it tasts like.

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