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New Shrew Has Spine of Steel

sciencehabit writes "It's the size of large rat, but it can reportedly withstand the weight of an adult man standing on its back. Meet the hero shrew, a molelike creature that owes its near-mythological status to a remarkable spine, thickened by extensions of bone that interlock like fingers. The structure was thought to be unique among mammals — until now. An international team of researchers in the village of Baleko, in the Democratic Republic of the Congo, made a surprising find: a slightly different shrew with a similarly 'heroic' backbone. Today in Biology Letters, they introduce Thor's hero shrew (S. thori), named for mammalogist Thorvald Holmes, but invoking the Norse god of strength. The researchers don't yet know how its strength compares to that of S. somereni. After exploring the shrews' swampy palm forests habitat, the researchers also have a new guess about why the spine evolved: They suggest that the creatures might wedge themselves between the trunk of a palm tree and the base of its leaves, then use the strength and flexion of their muscular spine to force open this crevice, revealing insect larvae—a food source that other animals can't access."

16 of 93 comments (clear)

  1. By Thor's Hammer! by Anonymous Coward · · Score: 5, Funny

    There will be no taming of this shrew!

    1. Re:By Thor's Hammer! by ArcadeX · · Score: 5, Funny

      thor's hammer gets all the credit, no one stops to remember grabthar's hammer...

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    2. Re:By Thor's Hammer! by flyingfsck · · Score: 2

      Hmm, don't screw with this shrew.

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    3. Re:By Thor's Hammer! by OhSoLaMeow · · Score: 2

      thor's hammer gets all the credit, no one stops to remember grabthar's hammer...

      You shall be avenged.

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  2. Experimentation time! by SailorSpork · · Score: 2

    The researchers don't yet know how its strength compares to that of S. somereni.

    In other words, they are currently writing up a research grant proposal that allows them to travel the world stepping on shrews. FOR SCIENCE!!!

    1. Re:Experimentation time! by tinkerghost · · Score: 2

      Hmm, the origins of Weasle Stomping Day?

  3. link fail by Gravis+Zero · · Score: 5, Insightful

    seriously, is nobody trying to actually RTFA?

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    1. Re:link fail by Walking+The+Walk · · Score: 3, Informative
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  4. Re:Does that make my dog a supervillain? by h4rr4r · · Score: 2

    Shrews are not rodents.

  5. Nit Picking by NormAtHome · · Score: 2

    Sorry article but Thor is not the Norse god of strength, that's Magni the god of strength and brute force and son of Thor with is the Norse god of thunder.

  6. Something that gets me... by mmcxii · · Score: 4, Insightful

    Here's the thing I don't like about how evolution is presented...

    researchers also have a new guess about why the spine evolved: They suggest that the creatures might wedge themselves between the trunk of a palm tree and the base of its leaves, then use the strength and flexion of their muscular spine to force open this crevice, revealing insect larvae

    Um, no. The spine did not evolve to meet the needs of the animal, the animal is alive because it had the traits needed to live. This would make much more sense if the statement was that "researchers also have a new guess about why the species thrived while others died."

    The way evolution is presented by most media makes it seem like after a species goes for a few generations it gains some ability like how one can gain a power up in a video game; "Ok... humans make it to the next level... they can either run faster, see further or have faster reflexes.... what will it be?"

    If this animal didn't have the ability to do what it does then it would have probably failed and we would know it now as a collection of bones in some natural history museum instead of a living creature. Now, this is also to say that those with mutations that gave them a stronger spine would be more likely to survive but it's not as if the species had control over the evolution of the spine itself.

    1. Re:Something that gets me... by Sir+or+Madman · · Score: 2

      Or maybe they just meant that an early version of this spine provided a marginal wedging advantage, which allowed the current "power-up" version of the spine to evolve.

    2. Re:Something that gets me... by Valdrax · · Score: 4, Informative

      In no way did their statement imply direction or control over their evolution. They merely described the selective pressure under which the mutations would have given them a survival advantage. Don't hijack their words to air your quibbling, semantic pet peeves.

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  7. Re:Does that make my dog a supervillain? by h4rr4r · · Score: 2

    They might, but you should know better. How else will you teach her?

  8. Re:Occam's Razor by eth1 · · Score: 2

    They suggest that the creatures might wedge themselves between the trunk of a palm tree and the base of its leaves, then use the strength and flexion of their muscular spine to force open this crevice, revealing insect larvaeâ"a food source that other animals can't access."

    Yeah.. it could be that. Or, "ZOMFG WHAT IS THAT!?" (stomp) "ITS NOT DYING! DAMN YOU EVOLUTION... Daaaaaamn yoooouuuuuuu...."

    As someone who's had pet rats before, I can totally believe that quote. If I was sitting on the floor, and he wanted to get on the other side of my leg, for example, he'd go UNDER it. Never mind that there was zero space, he'd just wedge his nose under, heave my leg off the floor, and keep going like that until he could squeeze through. They're quite strong that way.

  9. Thats a by future+assassin · · Score: 4, Funny

    > They suggest that the creatures might wedge themselves between the trunk of a palm tree and the base of its leaves, then use the strength and flexion of their muscular spine to force open this crevice, revealing insect larvae—a food source that other animals can't access."

    shrewd move

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