Navigation Links
'Banana-jawed' fossil mammal linked to rare sound-producing skill

what purpose did those weird jaws serve?

According to Simons, today's hyraxes are relics of a time when Africa lacked most of the kinds of animals found there today. Current scientific thought holds that most modern mammal groups diversified and became larger only after a giant asteroid killed off the dinosaurs 65 million years ago.

Numerous ecological niches vacated by the annihilated dinosaurs were waiting to be filled. One group of creatures, called the Afrotheres -- "Beasts from Africa" -- seized the opportunity. It was from this group, Simons said, that today's hyraxes descended.

The Afrotheres, whose descendents include elephants and aardvarks as well as hyraxes, diversified into various niches and ultimately became Africa's dominant land animals.

As hyraxes diversified, the development in Thyrohyrax of a curved, swollen jaw containing a hollow chamber represented a particularly strange adaptation, DeBlieux said. Some other hyracoid species also showed a similar adaptation, but the skeletal trait was most pronounced in Thyrohyrax, he added.

"Our team had long speculated on the cavity's purpose, " Simons said. "One idea we proposed, for example, was that the chamber contained enlarged salivary glands.

"Our current findings narrow down the possibilities," he said. "Among the most plausible explanations is that the hollow jaw was a sound-producing device." The animals, he added, may have used the chamber to produce sounds as part of their courtship or mating displays.

According to DeBlieux, help in refining explanations behind this mammal's unusual jaw may come from studying dinosaur models. In particular, he said, a number of museums have built models of dinosaur sound-producing skeletal cavities that have enabled scientists to reconstruct the possible sounds made by them.

Now, DeBlieux would like to do the same for the fossil hyrax. "It would be really neat," he said, "to model their jaws so we cou
'"/>

Source:Duke University


Page: 1 2 3 4

Related biology news :

1. Scientists find fossil proof of Egypts ancient climate
2. Oldest fossil human protein ever sequenced
3. Oldest cranial, dental and postcranial fossils of early modern European humans confirmed
4. Researchers find new giant amphibian fossils in Africa
5. Molecular fossils uncover link between viruses and the immune system
6. Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils
7. Spider blood found in 20 million year old fossil
8. Space matters: Estimating species diversity in the fossil record
9. Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils
10. Missing fossil link Dallasaurus found
11. Bugs expose underground carbon traffic system 10 times more important than fossil fuel burning
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Banana jawed fossil mammal linked rare sound producing skill

(Date:10/15/2014)... University Mainz (JGU) as a full member, ensuring ... a significant nationwide standing in the field of ... Gutenberg University Mainz as a full member of ... and international competition for the best minds and ... proud that Mainz University has been recognized as ...
(Date:10/15/2014)... NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ... growing mobile commerce market releases photos and video of the recent ... October 13 th . Gino Pereira , ... angel investor Mr. Chad A. Verdi rang the bell.  ... his investors and employees "for their work and dedication in bringing ...
(Date:10/14/2014)... Like discriminating thieves, prostate cancer tumors scavenge and hoard ... But such avarice may be a fatal weakness. ... to kill prostate cancer cells by delivering a trove ... the diseased cells brimming with the mineral, leaving non-cancer ... drugs already commercially available for other uses, could soon ...
Breaking Biology News(10 mins):Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Prostate cancer's penchant for copper may be a fatal flaw 2
... 9, 2013) Europe,s largest healthy ageing study ... of three simple preventive interventions: vitamin D, omega-3 fatty acids ... its target 2,000 seniors. In Europe, the number of seniors ... in the next 20 years, and those aged 80 and ...
... INDIANAPOLIS, Sept. 8, 2013 Disease-causing bacteria stink literally ... microbes has become the basis for a faster and simpler ... microbe, scientists reported here today at the 246th National Meeting ... largest scientific society. The new test produces results in ...
... less salt, is a mantra of our health-conscious times and ... and hypertension. Too much salt in the diet ... risk factor for high blood pressure however, scientists have found ... important role. A study by researchers at the University ...
Cached Biology News:DO-HEALTH a multi-center clinical trial on healthy ageing achieves first milestone 2New 'artificial nose' device can speed diagnosis of sepsis 2Yin-yang effect of sodium and chloride presents salt conundrum 2
(Date:10/20/2014)... BOSTON , Oct. 20, 2014 ... commercialization company tackling big healthcare problems, announced today ... investment round, with participation from Invesco Perpetual, a ... be used to drive PureTech,s existing pipeline forward ... technologies. "PureTech has the scientific creativity to really ...
(Date:10/20/2014)... Earle Martin , Chief Executive ... Ellen Teplitzky, an experienced attorney specializing in business ... has joined the firm as Director of Legal ... NDA Partners provides legal services, including research, ... top law firms and their clients in cases ...
(Date:10/19/2014)... 19, 2014 The Latin American hardware ... in Latin America with analysis and forecast of revenue. ... and is expected to reach $2,366.8 million by 2018, ... , Browse through the TOC of the Latin American ... the in-depth analysis provided. It also provides a glimpse ...
(Date:10/19/2014)... 2014 NextCODE Health, which enables clinicians and researchers ... time, today announced the launch of its new genomic data ... the American Society of Human Genetics (ASHG) annual meeting in ... up and apply for free beta access, visit www.nextcode.com ... can be viewed here . The Exchange: ...
Breaking Biology Technology:PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3
... Nov. 21, 2011 Double Eagle Holdings, Ltd. (OTCQB: DROP), ... announced last week a partnership with golf superstar Tiger Woods ... his bag. Woods and CEO of FUSE Science Adam Adler ... partnership on CNBC today Monday, November 21, at 12:30 p.m. ...
... The report " Leukemia Therapeutics Market (Acute/Chronic ... Global Market Forecast (2010 - 2020) " ... opportunities in North America, & Europe. ... Leukemia Therapeutics Market (Acute/Chronic Lymphocytic Leukemia & Acute/Chronic Myeloid ...
... 2011 - A research group from RIKEN, the University ... today announced that research results obtained using the "K ... at SC11, the International Conference for High Performance Computing, ... November 17 (US Pacific Standard Time). The award-winning ...
Cached Biology Technology:Tiger Woods Gives Exclusive First Interview Since POWERED by FUSE Announcement! 2MarketsandMarkets: Leukemia Therapeutics Market Worth $11.3 Billion by 2020 2MarketsandMarkets: Leukemia Therapeutics Market Worth $11.3 Billion by 2020 3'K computer' research results awarded ACM Gordon Bell Prize 2
Sf21 Insect Cells (Live) in Max-XP Medium...
... The BioGenex Super ... System is a novel ... proprietary non-biotin polymeric technology. ... high signal to noise ...
Artisan™ Wash Solution (x 50) Additional Information: EU regulatory status: CE US regulatory status: IVD ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
Biology Products: