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Why would a crab do this?

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Macre

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I was shown this gif by a friend at college, and I thought it was crazy. Does anyone know why this crab would do such a thing?

I was thinking maybe it was broken, or injured. I also thought it might possibly grow back, but I really don't know. Or maybe it's just a one off event, and the crab is crazy; or overly-aggresive.

Either way, I thought I'd share this with you guys.

Peace

Macre
 
Macre said:
I was shown this gif by a friend at college, and I thought it was crazy. Does anyone know why this crab would do such a thing?

I was thinking maybe it was broken, or injured. I also thought it might possibly grow back, but I really don't know. Or maybe it's just a one off event, and the crab is crazy; or overly-aggresive.
Humans do the same often. Think of amputating a limb because of gangrene. Plants also necrose organs of them that are infected.
 
Infundibulum said:
Humans do the same often. Think of amputating a limb because of gangrene. Plants also necrose organs of them that are infected.

That's a good point that you raise. You just have to look at someone like Aron Ralston. Although his circumstance was rare and extreme, he did what may seem unthinkable; but at the moment he did what he did, it was the easiest option available.

Peace

Macre
 
I'm pretty sure it will grow back a completely functional new pincher or claw. On the East Coast there is a whole industry where they catch these crabs with blue claws, pull of the claw and throw the crab back so that it will grow another one. They are supposed to taste delicious and it seems to be a sustainable fishing operation as the crabs are not killed to be eaten, just roughed up a bit. Amazing animals.
 
Mitakuye Oyasin said:
I'm pretty sure it will grow back a completely functional new pincher or claw. On the East Coast there is a whole industry where they catch these crabs with blue claws, pull of the claw and throw the crab back so that it will grow another one. They are supposed to taste delicious and it seems to be a sustainable fishing operation as the crabs are not killed to be eaten, just roughed up a bit. Amazing animals.

That's amazing. It's true that the best meat is in the claw. I can see how it's sustainable. Nature is an amazing thing that keeps throwing surprises. Definitely amazing animals.

Peace

Macre
 
to take an educated guess id say the crab is doing what a salamander does when they detach their tales to evade being captured and eaten. the wiggling claw is an easier meal for the predator and the crab grows a new one. its a win win for seafood lovers.
 
Crabs can grow their claws back. I used to find crabs with one large claw and one tiny one when crabbing.
 
Maybe, but we saw it with spider crabs, and the normal kind, and the baby ones. I'm pretty sure most crabs can grow back limbs. Starfish do it too.
 
Floz said:
Maybe, but we saw it with spider crabs, and the normal kind, and the baby ones. I'm pretty sure most crabs can grow back limbs. Starfish do it too.

Wow impressive :) So that settles it then. The crab was probably just showing off for the cameras :lol:

Peace

Macre
 
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