Navigation Links
A whale of a discovery: New sensory organ found in rorqual whales
Date:5/23/2012

Scientists at the University of British Columbia and the Smithsonian Institution have discovered a sensory organ in rorqual whales that coordinates its signature lunge-feeding behaviour and may help explain their enormous size.

Rorquals are a subgroup of baleen whales including blue, fin, minke and humpback whales. They are characterized by a special, accordion-like blubber layer that goes from the snout to the navel. The blubber expands up to several times its resting length to allow the whales to engulf large quantities of prey-laden water, which is then expelled through the baleen to filter krill and fish.

The study, to be featured on the cover of the journal Nature, details the discovery of an organ at the tip of the whale's chin, lodged in the ligamentous tissue that connects their two jaws.

NB: Illustrations of lunge-feeding and the location of the sensory organ, photos of the researchers at work at the Icelandic whaling station and a comprehensive Frequently Asked Questions are available at http://nmnh.typepad.com/pyenson_lab/nature-rorquals-organ.html.

Samples were collected from recently deceased fin and minke whale carcasses captured as part of Icelandic commercial whaling operations. Commercial whaling in Iceland resumed in 2006 and quotas are determined annually by its government.

Scanning of the whale's chin revealed a grape fruit-sized sensory organ, located between the tips of the jaws, and supplied by neurovascular tissue.

The research team was assisted by technicians at FPInnovations, the owner of Canada's only X-ray computed tomography (XRCT) machine large enough to accommodate the massive specimens. Used to scan giant logs, the XRCT machine provides a three dimensional map of the internal structure of whale tissues.

"We think this sensory organ sends information to the brain in order to coordinate the complex mechanism of lunge-feeding, which involves rotating the jaws, inver
'/>"/>

Contact: Heather Amos
heather.amos@ubc.ca
604-822-3213
University of British Columbia
Source:Eurekalert

Page: 1 2

Related biology news :

1. Whale population size, dynamics determined based on ancient DNA
2. Study amplifies understanding of hearing in baleen whales
3. New iPad, iPhone app helps mariners avoid endangered right whales
4. How to make high-end perfumes without whale barf
5. Ancient whale species sheds new light on its modern relatives
6. Giant squids giant eyes: The better to see hungry whales with
7. Genetic survey of endangered Antarctic blue whales shows surprising diversity
8. Blue whale behavior affected by man-made noise
9. What do killer whales eat in the Arctic?
10. Can we save the whales by putting a price on them?
11. Details of ancient shark attack preserved in fossil whale bone
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... BUFFALO, N.Y. A sleep-promoting circuit located deep in ... deep sleep. Discovered by researchers at Harvard School of ... and Biomedical Sciences, this is only the second "sleep ... to be both necessary and sufficient to produce deep ... Neuroscience , the study demonstrates that fully half of ...
(Date:9/18/2014)... "frequent flyers" program, fruit flies surely would be eligible ... increasing numbers of fruit fly research studies. One fruit ... and another is scheduled launch to the station Sept. ... December. , Fruit flies are biomedical research models studied ... organisms can reveal the basis for health and disease ...
(Date:9/18/2014)... built the first smartphone app that automatically reveals ... In other words, your smartphone knows your state ... and how that affects you. , The StudentLife ... loneliness to their academic performance, also may be ... to monitor mental health, trigger intervention and improve ...
Breaking Biology News(10 mins):No sedative necessary: Scientists discover new 'sleep node' in the brain 2Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 4
... the world go ,round they comprise most of the Earth,s ... that keep the planet, and life in and on it, going. ... is the carbon cycle, which is currently unbalanced. Humans release more ... Deal with Carbon: How Earth,s Mighty Microbes Respond," is a free ...
... May 6, 2011 Cancer researchers at UT Southwestern ... telomerase enzyme, which is linked to the disease,s growth. ... demonstrate that telomerase repairs chromosomes in one of two ways ... if the cell is under stress from enzyme inhibition ...
... Scientists have known for years that seizures in patients ... they did not know was why this was happening. ... by Professor Wilma Friedman of the Department of Biological Sciences ... a recently awarded, four-year, $2 million grant from the National ...
Cached Biology News:UT Southwestern research reveals how cancer-driving enzyme works 2Following trail of cell death in epilepsy patients to find ways to preserve brain health 2
(Date:9/19/2014)... 2014 Cereal grain scientists, quality ... gather October 5–8, 2014, for the AACC International ... Center in Providence, Rhode Island. The comprehensive scientific ... food scientists, chemists, microbiologists, nutritionists, and those interested ... management. To date, 1,000 attendees have registered for ...
(Date:9/18/2014)... 2014 Bipartisan passage this week by ... to stimulate development and commercialization of new technologies and ... leaders of SPIE, the international society for optics ... and Innovation (RAMI) Act, now moves to the full ... they are optimistic that it will win passage there ...
(Date:9/18/2014)... 18, 2014 A novel robotic system ... scanner is currently being tested as part of a ... in Boston with the aim of determining if the ... prostate cancer biopsies faster, more accurate, less costly, and ... has the potential to deliver prostate cancer therapies with ...
(Date:9/18/2014)... 2014 On Tuesday, Secretary of Energy ... Risch for National Lab Day on the Hill. The ... national laboratory system. Durbin and Risch also formally launched ... awareness of the reach of the national labs as ... address some of our nation's most pressing challenges. , ...
Breaking Biology Technology:Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... Reportlinker.com announces that a new ... its catalogue. , Worldwide ... Electron Microscope Market Shares, Strategies, and ... , http://www.reportlinker.com/p0153912/Worldwide-Optical-Transmission-TEM-and-Scanning-SEM-Electron-Microscope-Market-Shares-Strategies-and-Forecasts-2009-to-2015.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=prnewswire ...
... (Nasdaq: DNDN ) today announced that management will present at the following ... New York City, Tuesday, November 10, 2009, ... Phoenix, Arizona, Friday, November 13, 2009, ... Healthcare Conference, New York City, Tuesday, November ...
... NeurogesX, Inc. (Nasdaq: NGSX ), a biopharmaceutical ... therapies, announced today that Anthony DiTonno, President and Chief ... conferences in New York City: the Oppenheimer & Co. ... 2009 and the Lazard Capital Markets 6th Annual Healthcare ...
Cached Biology Technology:Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 2Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 3Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 4Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 5NeurogesX to Present at Two November Conferences 2NeurogesX to Present at Two November Conferences 3
Request Info...
... LXQ linear ion trap mass spectrometer enables ... laboratory., The LXQ linear ion trap mass ... proteomic applications, delivering the fast cycle time ... ion trap at an attractive price. ...
... gel stain was developed specifically for reduced mutagenicity ... staining DNA in agarose or acrylamide gels. SYBR ... ethidium bromide but SYBR Safe stain's detection sensitivity ... Safe stain comes as a premixed solution that ...
... are just some the things youll be telling ... Interactions, edited by Erica Golemis, One look at ... compilation of topics in protein interaction will tell ... must be a part of your personal protein ...
Biology Products: