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:12/17/2014)... Va. , Dec. 15, 2014 The Defense ... easier to detect and prevent counterfeit microcircuits from entering ... started performing an in-house microcircuit anti-counterfeit initiative dubbed DNA ... microcircuits while increasing their reliability throughout the supply chain. ...
(Date:12/17/2014)... Dec. 16, 2014 Valencell, a leader in performance ... technology to industry leaders such as Intel, Jabra, Atlas, ... biometric wearable products. These products will be showcased at ... Las Vegas . "Our partners ...
(Date:12/17/2014)... DENVER , Dec. 16, 2014  Automation is fundamentally ... evident than at international borders. Over the past decade, ... veteran travelers to self process through border control via ... increasing number of airports, seaports, and land borders across ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... suppression therapy to prevent T cell-mediated rejection. These ... undesirable side effects. Therefore, specific suppression of the ... needed. , It was known that anergic T ... to antigen stimulation) generated in an artificial environment ...
... culprits in delivering pollutants ?through their guano ?to seemingly ... The most common form of wildlife in the Arctic, ... contaminants to some coastal ecosystems, the researchers found. "The ... mercury and DDT to as much as 60 times ...
... biggest questions in modern oceanography is how animals in ... at the Monterey Bay Aquarium Research Institute (MBARI) recently ... least for animals that live on the deep seafloor ... of hours of deep-sea video, Bruce Robison and his ...
Cached Biology News:Industrial contaminants spread by seabirds in High Arctic, new Canadian study shows 2'Sinkers' provide missing piece in deep-sea puzzle 2'Sinkers' provide missing piece in deep-sea puzzle 3'Sinkers' provide missing piece in deep-sea puzzle 4
(Date:1/22/2015)... January 22, 2015 The laboratory information ... has witnessed a number of technological advancements due to ... requirements, growing need to integrate healthcare systems, and increasing ... challenges in system integration. Key players in the market ...
(Date:1/22/2015)... Pipette.com has added the Eppendorf Centrifuge ... of Eppendorf products. , The Eppendorf Centrifuge 5424/5424 R ... R and receive the following:, ,     Free ... Eppendorf Reference 2 ,     3 Free boxes ...
(Date:1/22/2015)... Controlled Substance Compliance Services (CSCS), a project managed ... legal requirements around using controlled substances in pharmaceutical research, ... their international operations expand and become increasingly complex, large ... a result of the first phase of the CSCS ...
(Date:1/22/2015)... 22 de enero de 2015  El Dr. Paul ... llamada a nominaciones para 2015. Este prestigioso premio reconoce ... tiene el potencial para hacer, contribuciones destacadas para la ... hasta el 15 de marzo de 2015 a través ...
Breaking Biology Technology:Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Global Compliance Service for Controlled Substances to Expand to China 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... $2.25 to $2.35., ST. LOUIS, Oct. 23 , HIGHLIGHTS:, ... periods in 2006):, -- Strongest Quarterly Sales Growth in 2007: ... prior quarters, performance, with reported quarterly growth ... high sales achieved in Q2 2007. Organic ...
... Roche Releases Positive Phase I Results for R1507, ... positive results from a Phase I study of R1507 ... R1507 is a human,monoclonal antibody targeting the insulin-like growth ... Genmab. Nine of 34 adult patients with solid ...
... Va., Oct. 23 PRA International,(Nasdaq: PRAI ) ... of therapeutic expertise and a specialist in oncology and,hematology, ... in oncology on Thursday, Nov. 8, 2007 at 11:30 ... Berger will,recommend ways to mitigate risk in terms of ...
Cached Biology Technology:Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 2Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 3Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 4Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 5Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 6Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 7Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 8Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 9Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 10Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 11Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 12Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 13Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 14Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 15Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 16Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 17Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 18Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 19Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EPS of $.54. 20Phase I Results Announced for R1507 From Genmab's Collaboration With Roche 2Phase I Results Announced for R1507 From Genmab's Collaboration With Roche 3PRA International to Present Audioconference on Oncology Research - Nov. 8 2
EGTA, 50 g. Ethylene glycol-O,O-bis-[2-amino-ethyl]-N,N,N,N,-tetraacetic acid.Assay: > 99.0%. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Request Info...
RABBIT ANTI NEOPTERIN...
... Dog serum is collected from fasted mixed breed, ... Available Anticoagulants: N-02: Citrate ... K2EDTA N-08: Potassium Oxalate N-10: ... N-05: ACD N-07: CPD ...
Biology Products: