Navigation Links
Barnacles go to great lengths to mate
Date:2/6/2008

Compelled to mate, yet firmly attached to the rock, barnacles have evolved the longest penis of any animal for their size - up to 8 times their body length - so they can find and fertilize distant neighbours.

Graduate student Christopher Neufeld and Dr. Richard Palmer from the Department of Biological Sciences at the University of Alberta have shown that barnacles appear to have acquired the capacity to change the size and shape of their penises to closely match local wave conditions. When wave action is light, a longer (thinner) penis can reach more mates, but at times of higher wave action, a shorter (stouter) penis is more manoeuvrable in flow and therefore can reach more mates.

The research, published in Proceedings of the Royal Society B, suggests that sexual selection - competition with other males, female choice, sexual conflict between males and females - is not required to explain variation in genital form. In barnacles, this variation appears to be driven largely by the hydrodynamic conditions experienced under breaking waves.


'/>"/>

Contact: Julie Naylor
julie.naylor@ualberta.ca
780-492-4073
University of Alberta
Source:Eurekalert

Page: 1

Related biology news :

1. Great apes endangered by human viruses
2. New report finds great potential for Swedish medical technology
3. Great potential to improve collection, recycling of Europes electronic waste, says UN report
4. Great Ape Trust awards $127,000 for international conservation efforts
5. Meteor no longer prime suspect in great extinction
6. RIT to study air pollution and greenhouse gas emissions in the Great Lakes region
7. Great Plains historical stability vulnerable to future changes
8. Clones on task serve greater good, evolutionary study shows
9. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
10. New process makes nanofibers in complex shapes and unlimited lengths
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2014)... are many viral diseases in the world for which ... fever, which is spread by mosquitoes in the tropics, ... more familiar in Finland and is easily spread by ... children and the elderly. , Researchers at Aalto University ... in preliminary tests to prevent the spread of one ...
(Date:4/15/2014)... parasites of cuttlefish, squid and octopus has uncovered ... shown how they may help in investigating populations ... has described 10 new parasite species− dicyemid mesozoans ... (cuttlefish, squid and octopus). They are the ... Australian waters. , "Although dicyemid parasites have ...
(Date:4/15/2014)... 15, 2014) New research published in the ... American College of Nutrition shows whey protein, either ... part of a weight-loss or weight-maintenance diet, may provide ... , The meta-analysis included 14 randomized controlled trials with ... those weight loss studies that used whey protein to ...
Breaking Biology News(10 mins):Nanocrystalline cellulose modified into an efficient viral inhibitor 2Bizarre parasite may provide cuttlefish clues 2New meta-analysis builds on the power of whey protein for improved body composition 2New meta-analysis builds on the power of whey protein for improved body composition 3
... pave the way for individually tailored therapiesContinuing its ... responses to medications, the National Institutes of Health ... years to renew its Pharmacogenetics Research Network (PGRN). ... will eventually help doctors tailor drug prescriptions to ...
... Research carried out with the participation of the ... molecule helps an important pathogen, Brucella abortus, escape ... agents (macrophages). This research has been published in ... model of an intracellular parasite, a category that ...
... Institution of Oceanography at the University of California, San ... Venezia Nuova and Thetis SPA, has launched a multifaceted ... effects of sediment translocation in Venice lagoon, a vital ... The new effort, a two-year, $1.5 million project for ...
Cached Biology News:NIH renews network focused on how genes influence drug responses 2NIH renews network focused on how genes influence drug responses 3NIH renews network focused on how genes influence drug responses 4New Scripps Oceanography project to study sediments and ecosystem restoration in Venice lagoon 2New Scripps Oceanography project to study sediments and ecosystem restoration in Venice lagoon 3
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... The American ... 22nd in San Antonio, Texas, USA. AFS is holding its 23rd Annual Conference, March 22-25, ... courses held on March 22nd. Five of these courses are on the topics of air ... ...
... , , , WASHINGTON ... director of the National Institutes of Health and recipient of the ... a February 26 Speaker Luncheon.  Topic of his talk ... The luncheon was originally scheduled for December, but postponed because of ...
... first time the European research initiative EUREKA will be ... which forms part of HANNOVER MESSE 2010 (19-23 April). ... Market for Research and Development in Hall 2. ... makes as a central European platform with respect to ...
Cached Biology Technology:Air Filtration and Gas/Solid Separation Training by the American Filtration and Separations Society 2Air Filtration and Gas/Solid Separation Training by the American Filtration and Separations Society 3Air Filtration and Gas/Solid Separation Training by the American Filtration and Separations Society 4NIH Director Francis Collins to Speak at National Press Club February 26 on 'A New Era of Quantum Leaps in Biomedical Research' 2NIH Director Francis Collins to Speak at National Press Club February 26 on 'A New Era of Quantum Leaps in Biomedical Research' 3European research initiative EUREKA presented at Research & Technology for the first time 2
... The ApopTag Red In Situ Apoptosis ... by the indirect TUNEL method, utilizing ... fluorochrome. The kit provides indirect immunofluorescence ... analyzed using either fluorescence microscopy or ...
The sample holders for gels are used to hold gels in place in the multi-sample tray I, which is used with Molecular Imager FX imaging systems....
... gel cell is a stand-alone apparatus that ... applications. The upper buffer chamber can accommodate ... long for isoelectric focusing (IEF) applications. The ... cooling core, lower buffer chamber, lid with ...
... The ApopTag Fluorescein In Situ ... in situ by the indirect TUNEL ... is conjugated to a Fluorescein reporter ... for 40 samples. Results are analyzed ...
Biology Products: