Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Protein Springs Keep Crabs Happy
CEH ^ | June 1, 2009

Posted on 06/07/2009 6:11:05 PM PDT by GodGunsGuts

Protein Springs Keep Crabs Happy

June 1, 2009 — Crabs and crayfish contain “exquisite” protein springs around their mouth parts that enhance motion, signaling, and sensing of their environment, Science Daily reported, about work done at the University of Cambridge.     The protein involved, called resilin, is almost perfectly elastic.  “The exquisite rubbery properties of resilin are known to be put to use as energy storage mechanisms in jumping insects and as biological shock absorbers in many animals,” said Malcolm Burrows, who conducted the study.  Using just one muscle, crabs and crayfish can move little feet (maxillipeds) around their mouth parts to deflect water currents coming out of the gills.  The resilin springs the maxillipeds right back. 

Burrows suggests that the use of resilin springs can have two cost saving advantages.  First, by saving the space that would be required for a muscle to do the job of ‘resetting’ the movement, the resilin spring allows the muscle that generates the power stroke to become larger and hence more powerful.  Second, the amount of nervous control required can be reduced because one direction of movement is controlled automatically by a spring.  As a result of this natural engineering, these limbs of the crab Carcinus maenas can beat in a coordinated way at a remarkable 20 times a second.
The movement of the maxillipeds helps the crab sense whether the gills need cleaning, and also controls the flow of odorant molecules crabs use to communicate with other members of their species.  For an example of elastic springs in a jumping insect, see the 08/01/2003 entry.
Did the crab engineer this itself?  Of course not.  Did a blind, mindless, directionless process do it?  Get real.  This scientist had no need of that hypothesis, nor should anyone else. Research project:  What is the amino acid structure of resilin?  What is the gene that encodes it?  How much variation exists in resilin genes between crabs and insects?  What is resilin’s distribution in the animal kingdom?  Look up resilin on the web and you will find interesting articles like these at BioMed and NatureNext headline on:  Marine BiologyAmazing Facts
  Our 06/06/2002 commentary tested three evolutionists’ hypothesis about the evolution of language by subjecting their own paper to their own evolutionary process.  The results are hilarious.


TOPICS: Culture/Society; Miscellaneous; News/Current Events
KEYWORDS: catholic; christian; creation; evolution; goodgodimnutz; intelligentdesign; science

1 posted on 06/07/2009 6:11:06 PM PDT by GodGunsGuts
[ Post Reply | Private Reply | View Replies]

To: All
To see the latest CEH funny, click the following:

http://creationsafaris.com/images/BM-BD-Intimidation.jpg

2 posted on 06/07/2009 6:12:59 PM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 1 | View Replies]

To: editor-surveyor; metmom; Alamo-Girl; betty boop; GourmetDan; MrB; valkyry1; DaveLoneRanger; ...

Ping!


3 posted on 06/07/2009 6:13:30 PM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 1 | View Replies]

To: GodGunsGuts

Is “Deadliest Catch” on tonight?


4 posted on 06/07/2009 6:15:20 PM PDT by Kansas58
[ Post Reply | Private Reply | To 1 | View Replies]

To: GodGunsGuts

lol


5 posted on 06/07/2009 6:16:50 PM PDT by Psycho_Bunny (ALSO SPRACH ZEROTHUSTRA)
[ Post Reply | Private Reply | To 1 | View Replies]

To: GodGunsGuts
"Protein Springs Keep Crabs Happy"

Am I the only one who was thinking something very different when reading the title?

6 posted on 06/07/2009 6:21:44 PM PDT by americanophile
[ Post Reply | Private Reply | To 1 | View Replies]

To: americanophile

> Am I the only one who was thinking something very different when reading the title?

ummmm...


7 posted on 06/07/2009 6:25:24 PM PDT by max americana
[ Post Reply | Private Reply | To 6 | View Replies]

To: americanophile

That's what I thought of, but I suppose I'm in the minority.

8 posted on 06/07/2009 6:27:16 PM PDT by ClearCase_guy (We are a ruled people, serfs to the Federal Oligarchy -- and the Tree of Liberty thirsts)
[ Post Reply | Private Reply | To 6 | View Replies]

To: americanophile

>>”Protein Springs Keep Crabs Happy”
>
>Am I the only one who was thinking something very different when reading the title?

You mean something more in-line with STDs?

No.


9 posted on 06/07/2009 6:37:28 PM PDT by OneWingedShark (Q: Why am I here? A: To do Justly, to love mercy, and to walk humbly with my God.)
[ Post Reply | Private Reply | To 6 | View Replies]

To: americanophile
"Protein Springs Keep Crabs Happy"

Am I the only one who was thinking something very different when reading the title?

No, but the title doesn't seem to have much to do with what comes after it.

10 posted on 06/07/2009 6:46:11 PM PDT by Moonman62 (The issue of whether cheap labor makes America great should have been settled by the Civil War.)
[ Post Reply | Private Reply | To 6 | View Replies]

To: GodGunsGuts

11 posted on 06/07/2009 6:54:11 PM PDT by BerryDingle (I know how to deal with communists, I still wear their scars on my back from Hollywood-Ronald Reagan)
[ Post Reply | Private Reply | To 1 | View Replies]

To: GodGunsGuts

Thanks for the ping!


12 posted on 06/07/2009 9:10:19 PM PDT by Alamo-Girl
[ Post Reply | Private Reply | To 3 | View Replies]

To: GodGunsGuts; metmom

Wow....more evidence that the cult of nonsense demanding that all we know just happened the way it did randomly, just because, with no purpose, without design and intelligence... is waaaay off kilter.

NO WONDER they have to sue to socialize and program children the way they do, because even a child gets it!


13 posted on 06/07/2009 9:34:55 PM PDT by tpanther (The only thing necessary for the triumph of evil is for g!ood men to do nothing---Edmund Burke)
[ Post Reply | Private Reply | To 1 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson