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Old 02-02-2007, 09:58 PM   #1
hng
 
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Does a crab regrow its legs?


Just got home from the LFS and bought an emerald crab, usually I take a look at whatever I buy, but this time I was busy talking and didn't. Got home and acclimated and then I noticed, this crab is missing a pincher and two other legs! At this point, I can't take hime back cause the store is closed so now I don't know what to do. Will he grow back those missing limbs? Should I even say anything to the store?
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Old 02-02-2007, 10:04 PM   #2
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Well, they are not expensive crabs, you could always get another. I would see how he does in your tank. Does your LFS have a guarantee?
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Old 02-02-2007, 10:08 PM   #3
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yes hng, they grow their legs and pinchers back. Every time they shed/molt.
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Old 02-02-2007, 10:44 PM   #4
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Hmm...well that makes me feel better. Kinda cool that they will regenerate their limbs.
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Old 02-02-2007, 11:12 PM   #5
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Does a crab regrow its legs?
Yes. I once had a FW fiddler crab climb out of the tank, and attack the cat. got it good too, The cat racing through the house screeching, when we finally caught her, we found the crabs pincher clamped onto the cat's nose. after a quick look around the tank, we found a legless and clawless fiddler crab on the floor, Just for S&G we though it back into the tank, thinking we would find it dead in the am. somehow it crawled away, and we didn't see it for several months, some time later we had to clean out and reset the tank, and we found a perfectly happy, regenerated crab.
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Old 02-02-2007, 11:17 PM   #6
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Interesting thought isn't it - some species you can imagine regrowing a bodypart shouldn't be to hard (eg the echinoderms - starfish). It presumably becomes a little harder in the arthropods (eg the crabs), but they seem to manage. Then you go up the evolutionary scale to things with a backbone (phylum chordata) and the process seems to become rarer - but animals like geckos and other lizards can still do it (a tail at least). So what makes it impossible for a human to regrow a limb that's been cut off?? Just a biological thought....
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Old 02-02-2007, 11:35 PM   #7
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Then you go up the evolutionary scale to things with a backbone (phylum chordata) and the process seems to become rarer - but animals like geckos and other lizards can still do it (a tail at least). So what makes it impossible for a human to regrow a limb that's been cut off?? Just a biological thought....
For a answer to that I think you'd need more biology than I have. I believe however it has to do with the way our bodies grow, and that as we develope, our cells "specialize" and a hand mussle cell can no longer become a bone cell and such. In the lower order animals, at cells are still more generalized, and with arthropods, the blueprint of the shell is still remembered by the body, and a shed cycle will create a whole new shell, it then just needs to fill it. remember, it isn't until they shed that they actually regerate.
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Old 02-02-2007, 11:40 PM   #8
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I accidentally basically ripped my coral banded shrimps arm off one time. I tried to grab him, then he pulled away.... There went the arm. No S'ing you, the limb was back in about 2 weeks. Im hoping my larger hermit grows back his limbs, because my puffer picked at him pretty good.

But I thikn he'll be ok if he lasts the first couple days...
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