Navigation Links
Karlsruhe Institute of Technology: Nature uses screws and nuts
Date:7/1/2011

This release is available in German.

A musculoskeletal system so far unknown in the animal world was recently discovered in weevils. The hip of Trigonopterus oblongus does not consist of the usual hinges, but of joints based on a screw-and-nut system. This first biological screw thread is about half a millimeter in size and was studied in detail using synchrotron radiation. The discovery is reported by the current issue of the Science magazine. (DOI:10.1126/science.1204245)

"Such a construction for animal leg movement is quite unusual, as large areas of skeletal parts move on top of each other. Supply of the leg takes place via a very small opening in the center of the screw," Thomas van de Kamp from Karlsruhe Institute of Technology says. In nature, hips and shoulders usually are based on ball-and-socket systems or hinges that can be operated more easily by organisms. Screws and nuts are known from engineering and used for the fixed connection of components. "Now, we found that nature was first in inventing screws and nuts, because weevils have been using this construction for about 100 million years already," Alexander Riedel from the Karlsruhe State Museum of Natural History says. This museum supplied the weevil samples studied. The detailed three-dimensional images of the joints were made at the national ANKA synchrotron radiation source of Karlsruhe Institute of Technology.

As a rule, weevils are clumsier than many other beetles, e.g. cara-bidae. Transformation of a hinge joint into a screw joint, however, allowed them to move their legs further down, which made them better climbers. The Trigonopterus oblongus weevil analyzed here lives on twigs and foliage in the jungle of Papua New Guinea. For feeding, the thorn is pushed into the plant tissue, while the hind legs provide strong foothold. Presumably, the scre
'/>"/>

Contact: Monika Landgraf
presse@kit.edu
49-072-160-847-414
Helmholtz Association of German Research Centres
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Karlsruhe invisibility cloak: Disappearing visibly
2. BASF and Karlsruhe Institute of Technology develop tomorrows battery materials
3. Virtual Institute investigates virus infections
4. Smithsonian Conservation Biology Institute and George Mason University expand partnership
5. Trudeau Institute announces new discovery in battle against plague and bacterial pneumonias
6. Scripps Research Institute Scientist Knighted by Italian Republic
7. Significant litter of cheetah cubs born at Smithsonian Conservation Biology Institute
8. Research Institute of the MUHC awarded $1.4M grant
9. Clemson University institute to study vertical farming feasibility in Charleston, S.C.
10. HHMI helps summer institute expand to regional sites
11. Weizmann Institute scientists discover: A protein that contributes to obesity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Karlsruhe Institute of Technology: Nature uses screws and nuts
(Date:7/10/2014)... NEW YORK , June 27, 2014 /PRNewswire/ ... against Provectus Biopharmaceuticals, Inc. ("Provectus" or the "Company")(NYSE-MKT: ... action, filed in United States District Court, Middle ... Division, is on behalf of a class consisting ... otherwise acquired Provectus securities between December 17, 2013 ...
(Date:7/10/2014)... SPRINGS, Florida , July 1, 2014 ... wallets pave way for convenience and improved security: NXT-ID, Inc. ... Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... and MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) ... is pleased to announce that the second series of 30 ...
(Date:7/10/2014)... July 2, 2014 It is a great ... the appointment of the world-renowned Thoracic and Cardiovascular surgeon, ... Dr. Ginsburg, with over 34 years of ... Hospital and Good Samaritan Regional Medical Center. Dr. Ginsburg ... late 1980,s and is considered an expert in the ...
Breaking Biology News(10 mins):SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Avery Biomedical Devices, Inc. announces the appointment of Mark E Ginsburg, M.D. to its Board of Directors 2
... able to change their spots, but corals can change their ... chemical composition of the seawater around them. , That's the ... writing in the July issue of the journal Geology. ... is the first known case of an animal altering the ...
... born infected with human cytomegalovirus, or CMV, and about ... the virus ?almost one an hour. These disabilities can ... of coordination, and seizures. According to the Centers for ... cause of serious disability as Down syndrome, fetal alcohol ...
... Biologists from Washington University in St. Louis and their ... trees of rice varieties and have determined that the ... Asian locales. , Jason Londo, Washington University in Arts ... A. Schaal, Ph.D., Washington University Spencer T. Olin Professor ...
Cached Biology News:Corals switch skeleton material as seawater changes 2Corals switch skeleton material as seawater changes 3Innovative method for creating a human cytomegalovirus vaccine outlined 2Biologists find regions of rice domestication 2
(Date:7/10/2014)... in the fight against terrorism with the creation of ... with the use of light and special glass fibres. ... B: Chemical , the researchers describe a novel optical ... low as 6.3 ppm (parts per million). It requires ... "Traditionally explosives detection has involved looking for metals that ...
(Date:7/10/2014)... of psychiatric disorders has been extremely challenging because there ... are insufficient to cause disease. Now investigators reporting in ... Cell Stem Cell describe a strategy that ... with other risk factors or environmental exposures to affect ... a genetic variant that may predispose individuals to schizophrenia. ...
(Date:7/10/2014)... spiders can sit upside down forever. Nanophysics makes sure of ... an article just published in Physical Review E . ... and spiders that seem to be able to sit still ... for many years. We will soon be able to buy ... gecko,s foot. But the fact is, sooner or later the ...
(Date:7/10/2014)... The new alliance will see the two universities and ... working with business and industry and their complementary academic ... will help to shape the scientific priorities of the ... train up to 300 high-calibre PhD students, will provide ... at NPL, the potential of the Laboratory will be ...
Breaking Biology Technology:Detecting trace amounts of explosives with light 2New strategy could uncover genes at the root of psychiatric illnesses 2Even geckos can lose their grip 2Universities of Surrey and Strathclyde selected as strategic partners in the future operation of the National Physical Laboratory 2Universities of Surrey and Strathclyde selected as strategic partners in the future operation of the National Physical Laboratory 3
... , MALVERN, Pa. ... (AMR) and Decision Resources find that the leading driver ... broad-spectrum activity against gram-positive and gram-negative pathogens. Due to ... surveyed European physicians reveal that they look primarily for ...
... ... Top LASIK surgeons and recognized refractive and cataract surgery ... up-to-date on the latest developments in vision correction surgery, cataract surgery, ... Ophthalmology (AAO) annual meeting in San Francisco, California. Dr. Richard Lindstrom, ...
... VIENNA, Austria, November 19 AFFiRiS AG ... an unexpectedly early,stage of development: the vaccine candidate AD02 is ... This decision by the company,immediately follows the completion of two ... based its fast decision on the first interim,analysis of the ...
Cached Biology Technology:Broad-Spectrum Antibacterial Activity is the Most Important Driver of Antibiotic Selection for Nosocomial Pneumonia In Europe 2Broad-Spectrum Antibacterial Activity is the Most Important Driver of Antibiotic Selection for Nosocomial Pneumonia In Europe 3Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 2Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 3Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 4Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 5Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 6Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 7Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 8Experts Listed at Trusted LASIK Surgeons Bring Peers Up to Date on Vision Correction and Cataract Surgery at Annual AAO Meeting 9AFFiRiS AG: Interim Analysis of Clinical Phase I Data Triggered Decision to Move Alzheimer's Vaccine Candidate AD02 into Clinical Phase II Testing 2AFFiRiS AG: Interim Analysis of Clinical Phase I Data Triggered Decision to Move Alzheimer's Vaccine Candidate AD02 into Clinical Phase II Testing 3