Navigation Links
Study amplifies understanding of hearing in baleen whales
Date:4/17/2012

For decades, scientists have known that dolphins and other toothed whales have specialized fats associated with their jaws, which efficiently convey sound waves from the ocean to their ears. But until now, the hearing systems of their toothless grazing cousins, baleen whales, remained a mystery.

Unlike toothed whales, baleen whales do not have enlarged canals in their jaws where specialized fats sit. While toothed whales use echolocation to find prey, baleen whales generally graze on zooplankton, and so some scientists have speculated that baleen whales may not need such a sophisticated auditory system. But a new study by scientists at Woods Hole Oceanographic Institution (WHOI), published April 10, 2012, in The Anatomical Record, has shown that some baleen whales also have fats leading to their ears.

The scientists propose that toothed whales may not be the only whales that use fats to transmit sound in water, as previously believed, and the fats in both types of whales may share a common evolutionary origin.

Little progress had been made on the auditory anatomy of baleen whales because specimens to study are hard to get. Unlike many toothed whales, they are large, not kept in captivity, rarely strand on beaches, and decompose rapidly when they do.

For the new study, lead author Maya Yamato, a graduate student in the MIT/WHOI Joint Program in Oceanography, received seven heads of minke whales that stranded and died, mostly on beaches on Cape Cod. She collaborated with the International Fund for Animal Welfare's (IFAW) Marine Mammal Rescue and Research unit in Yarmouth Port, Mass.

The whale heads were scanned using computerized tomography (CT) and magnetic resonance imaging (MRI) at the Computerized Scanning and Imaging (CSI) lab at WHOI and MRI facility at Massachusetts Ear and Eye Infirmary in Boston. Using these biomedical techniques, the researchers generated 3-D visualizations of the whales' internal an
'/>"/>

Contact: WHOI Media Relations
media@whoi.edu
508-289-3340
Woods Hole Oceanographic Institution
Source:Eurekalert

Page: 1 2

Related biology news :

1. Large international study finds memory in adults impacted by versions of 4 genes
2. UF receives $1 million from Keck Foundation to study mechanisms of inherited disease
3. Whats in a surname? New study explores what the evolution of names reveals about China
4. U of I study: Lose body weight before gaining baby weight
5. Study resolves debate on human cell shut-down process
6. Study shows botanical formula fights prostate cancer
7. Approach to diabetes self-management too narrow, study suggests
8. Study finds peoples niceness may reside in their genes
9. Loyola study debunks common myth that urine is sterile
10. UCSB study shows forest insects and diseases arrive in US via imported plants
11. Head and body lice appear to be the same species, genetic study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... 2014   Atmel® Corporation (NASDAQ: ... touch technology solutions, today launched the industry,s first family ... widest V cc range from 1.7V to 5.5V. ... I 2 C bus communication speeds, and are available ... them ideal for consumer, industrial, computer, and medical applications. ...
(Date:11/18/2014)... , Nov. 18, 2014   EyeLock Inc. ... solutions, and MorphoTrust USA (Safran), a ... today announced a strategic partnership to offer comprehensive ... vehicle administration (MVA), airport screening and financial services ... solutions, MorphoTrust serves consumers through a nationwide network ...
(Date:11/10/2014)... store shelves in early 2010, and people have used ... can be tossed into a washing machine without ever ... convenience, though, has come with risks for young children. ... Hospital found that from 2012 through 2013, U.S. poison ... 6 years of age swallowing, inhaling, or otherwise being ...
Breaking Biology News(10 mins):Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3Study finds laundry detergent pods, serious poisoning risk for children 2
... of ice, a minimally invasive interventional radiology treatment called ... damage, according to data being presented at the Society ... Orleans. "Cryoneurolysis could have big implications for the ... be unbearable and is very difficult to treat," said ...
... WEST ORANGE, N.J.The State of Spinal Cord Injury: Latest ... Recovery will be held on Wednesday, April 17, 2013, ... Pleasant Valley Way, West Orange, N.J. This special Grand ... Cord Injury System (NNJSCIS) and the Spinal Cord Injury ...
... have revealed the mechanism that causes a slime to ... antibiotics. When under threat, some bacteria can shield ... biofilm. It is made up of communities of bacteria ... cause dental plaque and sinusitis; in healthcare, biofilms can ...
Cached Biology News:Freezing nerves knocks pain out cold 2The State of Spinal Cord Injury Grand Rounds 2Secrets of bacterial slime revealed 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... (Amex: ETC ) ("ETC" or the "Company") ... two BARA-MED(R) XD,Monoplace Hyperbaric Chambers at Christus Spohn, ... Christi, Texas, in 1905 and is,the largest and ... The,facility offers South Texans a full range of ...
... SAN DIEGO, Sept. 23 Halozyme Therapeutics,Inc. (Nasdaq: ... products targeting the extracellular matrix, today,announced that Douglas ... Vice,President, Endocrinology Clinical Development., "I am thrilled ... caliber,and achievement to the Halozyme leadership team. He ...
... Development of Novel Infectious ... Disease Diagnostic Platform -, WOBURN, ... a $4.5 million equity investment from BD (Becton, Dickinson,and Company) ... development of a novel infectious disease diagnostic,platform. The collaboration will ...
Cached Biology Technology:Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 2Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 3Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 2Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 3Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 4U.S. Genomics Inc. Receives $4.5 Million Investment from BD 2U.S. Genomics Inc. Receives $4.5 Million Investment from BD 3
384 Cluster Tube Racks...
The antibody recognizes the peptide sequence ESESQGPK (aa 441-448) of human class III beta-tubulin specific for neurones....
... Partially purified chicken intestinal cytoplasmic 1,25-(OH)2D3 ... receptor (VDR) from human, rat, mouse, ... This antibody does not cross-react ... MA1-710 detects both the occupied and ...
... compact, highly versatile power supply. Capable of producing ... power supply is ideal for PAGE, SDS-PAGE, DNA ... types of small format transfer apparatus. It is ... current with a continuously variable output in either ...
Biology Products: