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:7/28/2014)... Solanum pennellii , a wild relative of the ... of researchers including the labs headed by Professors Neelima ... of Plant Biology. The new genome information may help ... published July 27 in the journal Nature Genetics ... Aachen University in Germany. The UC Davis labs carried ...
(Date:7/28/2014)... bug hunter, but the target of his work consists ... with special methods and instruments. Benjamin Hause, an assistant ... at Kansas State University, recently published an article about ... an important find in the United States. , "We ... what it was," Hause said. "We used next-generation sequencing ...
(Date:7/28/2014)... July 28, 2014 Research and Markets ... Market in Latin America 2014-2018" report to their ... Biometrics measure and analyze biological data. These systems ... eye retinas, voice patterns, and hand measurements from the ... stored templates. The main purpose of a biometrics system ...
Breaking Biology News(10 mins):Researcher using next-generation sequencing to rapidly identify pathogens 2Researcher using next-generation sequencing to rapidly identify pathogens 3Biometrics Market in Latin America 2014-2018 2
... Could a computer model help stabilize the tuna ... ethanol fuel without jeopardizing food production? Those ... scientists, applied mathematicians, economists, biologists and environmental scientists ... Sustainability, being launched with a $10 million grant ...
... The development of powerful supercomputers capable of ... an eye mark a technological milestone capable of ... business worldwide. Researchers at the University of Miami,s ... with NCAR (National Center for Atmospheric Research), COLA ...
... COLD SPRING HARBOR, N.Y. (Sept. 4, 2008) ... and animalshave biological rhythms, where the timing and duration ... them to adapt and survive, even under fluctuating environmental ... made to understand the molecular basis of these rhythms ...
Cached Biology News:Cornell gets $10 million NSF grant to establish new sustainability institute 2Petascale climate modeling heats up at University of Miami 2Petascale climate modeling heats up at University of Miami 3Interdisciplinary volume on biological rhythms serves as both primer and in-depth resource 2
(Date:7/28/2014)... 2014 Research and Markets has announced ... 2014-2018" report to their offering. ... a technique used to determine the size of a particle ... crucial to analyze the size of particles as it can ... is performed to determine the behavior and nature of a ...
(Date:7/26/2014)... Canada Endoscopy Visualization Systems Market Outlook ... Canada Endoscopy Visualization Systems market. The report provides ... units) and average prices (in US dollars) within ... Endoscopy Visualization Systems and Low-End Endoscopy Visualization Systems. ... , The report also provides company shares and ...
(Date:7/25/2014)... July 25, 2014 Amgen (NASDAQ: ... declared a $0.61 per share dividend for the third ... Sept. 5, 2014, to all stockholders of record as ... About Amgen Amgen is committed to ... serious illnesses by discovering, developing, manufacturing and delivering innovative ...
(Date:7/25/2014)... researchers from the University of Leicester has furthered ... the potential to create new materials using nanosized ... published in the prestigious academic journal Physical ... to examine in rich detail the structure and ... an acetylene molecule and a single helium atom. ...
Breaking Biology Technology:Global Particle Size Analysis Market 2014-2018 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Amgen Announces 2014 Third Quarter Dividend 2Amgen Announces 2014 Third Quarter Dividend 3Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3
... the American Academy ... of Dermatology, FREEPORT, N.Y., ... and its natural receptor,OCTN- 1, are a natural part of the skin,s ... in photoaged,skin. The data was presented at the Poster Session at the ...
... Feb. 11 Emisphere,Technologies, Inc. (Nasdaq: EMIS ), ... delivery of therapeutic molecules using its,eligen(R) technology, today announced ... CEO & Investor Conference on February 12, 2008 on,its ... page of the,Emisphere Web site at http://www.emisphere.com/ir.asp ...
... On Monday, January 28, The Royal,Marsden Hospital ... Modulated Arc Therapy (VMAT)* treatment in the ... the treatment, the hospital,used its existing Elekta ... control system., (Logo: http://www.newscom.com/cgi-bin/prnh/20020318/ELEKTALOGO ...
Cached Biology Technology:AGI Dermatics Clinical Data Identifies L-Ergothioneine as Part of Skin's Natural Antioxidant System 2Emisphere Technologies to Web Cast BIO CEO & Investor Conference Presentation February 12 2Elekta Announces First Volumetric Modulated Arc Therapy Cancer Treatment at Royal Marsden Hospital 2
odz, odd Oz/ten-m homolog 1 [Source:RefSeq_peptide;Acc:NP_055068] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Rabbit polyclonal to FANCE ( Abpromise for all tested applications). entrezGeneID: 2178 SwissProtID: Q9HB96...
Rabbit polyclonal to NIRF ( Abpromise for all tested applications). Antigen: Synthetic peptide derived from residues 186-235 of human NIRF. Entrez Gene ID: 115426 Swiss Protein ID: Q96PU...
...
Biology Products: