Navigation Links
Scientists discover a new sensory organ in the chin of baleen whales
Date:5/25/2012

Lunge feeding in rorqual whales (a group that includes blue, humpback and fin whales) is unique among mammals, but details of how it works have remained elusive. Now, scientists from the Smithsonian Institution and University of British Columbia have solved the mystery. They discovered a sensory organ in the chin of rorqual whales that communicates to the brain. The organ orchestrates the dramatic changes and adjustments needed in jaw position and throat-pouch expansion to make lunge feeding successful. The team's research will be the featured cover story in the May 24 issue of Nature.

Rorqual whales are among the largest vertebrates, yet they feed on some of the smallest organisms in the ocean. They race forward, engulfing more than their own body weight in water and then filter out the millions of krill and small fish inside their mouths―all within seconds. This feeding technique is made possible by several morphological specializations, including hyper-expandable throat pleats, a Y-shaped cartilage structure connecting the chin to the throat pleats and a lower jaw made of two separate bones that move independently. The discovery of this sensory organ is shedding new light on how these features coordinate to create successful feeding.

The organ, composed of connective tissue with papillae (protrusions) that contain nerves, is suspended in a gel-like material and is located in the whale's chin in the space between the tips of the two lower jaw bones. Vascular and nervous tissue from an ancestral front tooth socket still remains in today's whales and connect to the sensory organ. Evidence indicates that the sensory organ responds to jaw rotation when the whale opens and closes its mouth and when the whale's throat pleats expand as it takes in water.

"The odd arrangement of tissues didn't make much sense to us at first, but then we realized that this organ was perfectly placed, anatomically, to coordinate a lunge bec
'/>"/>

Contact: John Gibbons
gibbonsjp@si.edi
202-633-5187
Smithsonian
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Scientists start explaining Fat Bastards vicious cycle
2. Scientists find gold-plated fossil solution
3. New study by WHOI scientists provides baseline measurements of carbon in Arctic Ocean
4. Novel discovery by NUS scientists paves the way for more effective treatment of cancers
5. Stanford scientists document fragile land-sea ecological chain
6. Using graphene, scientists develop a less toxic way to rust-proof steel
7. Scripps Florida scientists awarded $8.4 million grant to develop new anti-smoking treatments
8. Berkeley Lab scientists generate electricity from viruses
9. Scientists read the ash from the Icelandic volcano 2 years after its eruption
10. Scientists find differences in naked mole rats protein disposers
11. Scripps Florida scientists identify neurotranmitters that lead to forgetting
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover a new sensory organ in the chin of baleen whales 
(Date:5/21/2015)... 2015 The Sync Project™ , a ... health, today announced a collaborative partnership with Berklee,s ... center on collaboration on original research, joint course development ... the collaboration, The Sync Project and BerkleeICE are exploring ... in the 2015-2016 academic year.  The ...
(Date:5/20/2015)... May 20, 2015 NXT-ID, Inc. (NASDAQ: ... wholly owned subsidiary, 3D-ID LLC, a company engaged in ... for the biometrics technology portion of the recently awarded ... the Department of the Army. 3D-ID LLC ... for government, law enforcement and security agencies. ...
(Date:5/19/2015)... 2015  Technology is rapidly advancing, outpacing enterprises, ability ... cloud. Passwords and their management are soon to be ... specifications such as those developed by the FIDO Alliance™. ... presents for BYOD, COPE, IoT, and mobile payments, the ... In response to the call for ...
Breaking Biology News(10 mins):The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 3
... WEST LAFAYETTE, Ind. - Chemical engineers at Purdue University ... and other biomass into biofuels, and they are proposing ... the Midwest to produce the fuels. "What,s ... available biomass -- wood chips, switch grass, corn ...
... MD, PhD, Professor and Head of Physiology at LSU Health ... grant over five years by the National Institute on Drug ... cannabinoids, the principal psychoactive component of marijuana, produce subtle changes ... HIV infection. As the grant,s principal investigator, Dr. ...
... us are simply overloaded with cholesterol, and now a report in ... be good news: There is more than one way to get ... heart disease. "Cholesterol really can,t be broken down," said Mark ... of it, it must be excreted, and now Brown and his ...
Cached Biology News:New biofuels processing method for mobile facilities 2New biofuels processing method for mobile facilities 3Cholesterol's other way out 2
(Date:5/28/2015)... , May 28, 2015 Natera, ... announced a study published in Ultrasound in ... single-nucleotide polymorphism (SNP)-based non-invasive prenatal test (NIPT) can ... trimester. A study based upon ... molar pregnancies occur in about 1 in 1,000 ...
(Date:5/28/2015)... (PRWEB) May 28, 2015 BioNorth ... serving and representing the life sciences industry in ... of Directors meeting at The Foundry in Dallas ... the organization brought together a broad spectrum of ... underscored the organization's early successes in partnering with ...
(Date:5/28/2015)... Mass. , May 28, 2015 RXi ... focused on discovering and developing innovative therapeutics, primarily in ... pricing of a public offering of 26 million units ... share for gross proceeds of approximately $10.4 million. Each ... (ii) a 13-month overallotment purchase right to purchase 0.50 ...
(Date:5/28/2015)... 2015  GenVec, Inc. (Nasdaq: GNVC ) today ... Swirsky , will present a company overview at the ... on Thursday, June 4, 2015. The ... be available at the following link:  http://wsw.com/webcast/jeff88/gnvc .  ... To access, visit www.genvec.com , click on "Investors ...
Breaking Biology Technology:First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 2First Confirmed Detection of a Complete Molar Pregnancy with Cell-Free DNA Test 3BioNorthTX Holds Inaugural Board of Directors Meeting 2BioNorthTX Holds Inaugural Board of Directors Meeting 3RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces $10 Million Public Offering of Common Stock and Warrants 3GenVec To Present At The Jefferies Healthcare Conference 2
... Wis. - Last Sunday morning, in the free-wheeling ... Huber shared secrets and strategies from her forthcoming book, ... which she expects to publish next year. , ,In ... professionals, Huber provided advice about maximizing efficiency and minimizing ...
... companies were nervously introducing their products to a sold-out ... and eager media. , ,DEMOfall 2006 was an amazing ... FutureScan panels were smart. The buzz in the pavilion ... , ,The DEMOgods smiled upon us as the 67 ...
... world's most worrisome health issues is one of the major ... Biotechnology and Medical Device Association . , ,The conference, which ... Institute in Waukesha, will not only feature addresses by ... but session topics on global biological threats and personalized medicine. ...
Cached Biology Technology:BarCamp talk turns to Internet dating 2BarCamp talk turns to Internet dating 3Basking (briefly) in the DEMOfall 2006 glow 2Wisconsin's role in health a focus of biotech event 2Wisconsin's role in health a focus of biotech event 3
Rabbit polyclonal antibody to NMDA NR2B [Tyr1336]...
... combines enterprise-scale sequence analysis software with the DeCypher ... With DeCypher, you can perform searches like these ... NCBI NT database in under 6 days ... DNA Use HMM analysis to compare ...
... MTT, (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrasodium bromide), 50mg/vial. MTT is ... by living cells to yield a dark ... mitochondria, and even freshly dead cells do ... A is a component of Chemicons MTT ...
Mouse monoclonal antibody to FMN2 - formin 2...
Biology Products: