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Yeti Crab Cultivates Bacteria On Claw, Then Eats Them

Pierre Bezukhov writes with some interesting news from the deep as reported in Nature: "In the deep ocean off the coast of Costa Rica, scientists have found a species of crab that cultivates gardens of bacteria on its claws, then eats them. ... The bristles that cover the crab's claws and body are coated in gardens of symbiotic bacteria, which derive energy from the inorganic gases of the seeps. The crab eats the bacteria, using comb-like mouthparts to harvest them from its bristles. ... [Scientists believe] the crab waves its claws to actively farm its bacterial gardens: movements stir up the water around the bacteria, ensuring that fresh supplies of oxygen and sulphide wash over them and helping them to grow."

6 of 49 comments (clear)

  1. Re:Stolen by Walkingshark · · Score: 4, Funny

    You mean this isn't an original piece from one of Slashdot's crack team of reporters?!

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  2. Think about all those poor bacteria! by jellomizer · · Score: 4, Funny

    Think about all those poor bacteria that it kills in order to feed itself. It should be more like the moral crabs that are scavenger, at least they eat what is already dead.

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    1. Re:Think about all those poor bacteria! by JustOK · · Score: 4, Funny

      oh, like bacteria are blameless. They're lazy. They should be out looking for real jobs, not surviving on hand outs from the crabs.

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    2. Re:Think about all those poor bacteria! by Mikkeles · · Score: 4, Funny

      I guess it could be called Occupy Crab Claw.

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  3. Yeti crabs? by michelcolman · · Score: 4, Funny

    I thought that was a sexually transmitted disease among abominable snowmen.

  4. The ocean is amazing. by Anonymous Coward · · Score: 5, Interesting

    There are so many amazing creatures in the ocean. The Pom Pom crab does something kind of similar, in that it actually carries around 2 anemones in it's claws and uses them to catch food with and to defend itself. It is not born with those anemones and actually has to find them. If it loses one it attempts to split the remaining one in two, something we still have trouble with. Very interesting creature!

    Further reading -
    http://en.wikipedia.org/wiki/Lybia_edmondsoni
    http://www.liveaquaria.com/product/prod_display.cfm?c=497+501+1474&pcatid=1474
    http://www.aquariaworld.co.uk/invertebrates/boxer_crab.htm