Navigation Links
Piranha kin wielded dental weaponry even T. rex would have admired
Date:12/27/2012

Taking into consideration its size, an ancient relative of piranhas weighing about 20 pounds delivered a bite with a force more fierce than prehistoric whale-eating sharks, the four-ton ocean-dwelling Dunkleosteus terrelli and even Tyrannosaurus rex.

Besides the force of the bite, Megapiranha paranensis appears to have had teeth capable of shearing through soft tissue the way today's piranhas do, while also being able to pierce thick shells and crack armoring and bones, according to Stephanie Crofts, a University of Washington doctoral student in biology.

"If our calculations are correct, Megapiranha was probably a bone-crushing predator taking bites of anything and everything," she said. Crofts is co-author of "Mega-Bites: Extreme jaw forces of living and extinct piranhas," published Dec. 13 in the online journal Scientific Reports.

The bite force of Megapiranha, which lived 10 million years ago, was extrapolated from the first field measurements of the biting force of Earth's largest piranha today, Serrasalmus rhombeus or black piranha. One 2 pound fish delivered a bite with a force of 320 newtons, or about 72 pounds, which is 30 times its body weight. The force is nearly three times greater than the bite force of an equivalent size American alligator.

Based on the 2 pound piranha and other specimens tested in the wild, the scientists calculate that Megapiranha paranensis, which weighed approximately 22 pounds, could have had a bite force anywhere from 1,240 to 4,750 newtons or 280 to 1,070 pounds and possibly more.

Other scientists have previously estimated that T. rex slammed its jaws shut with 13,400 newtons, or 3,000 pounds of force, but that's nowhere near 30 times its body weight.

Pound for pound, Megapiranha and black piranha have the most powerful bites among carnivorous fishes, living or extinct, the paper said. "For its relatively diminutive
'/>"/>

Contact: Sandra Hines
shines@uw.edu
206-543-2580
University of Washington
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. CPS Magazine Announces a CDT Code for Resin Infiltration that Gives Dental Practices Additional Treatment and Billing Options for New Dental Material Icon by DMG America
2. Copper Vista Dental Care LLC in Arizona Announces the Opening of its Globe Dental Office
3. Archstone Dental In North Fort Worth Joins The Northeast Tarrant Chamber of Commerce
4. Tennessee Dental Association and Succeed Management Solutions Partner to Deliver New Safety Software Solution for Tennessee Dentists
5. Dr. Neil McLeod, a West Hollywood Dentist, Announces a Development of a New Dental Instrument to Help Dentists Fit Crowns and Onlays More Accurately
6. Dental Marketing Formula.com has been Featured in The LA Daily News for their Specialized Practice Building Solutions in the Dental Industry
7. Drug to treat opioid addiction poses risks for accidental exposure to children
8. Evident Dental Laboratory Management Software Prepares US Dental Labs for New Medical Devices Tax Starting January 1st, 2013
9. Unique Web Consulting Creates a New Website for Olive Dental Group
10. Massage and the Aboriginal Didgeridoo - A Transcendental Healing Experience in the Heart of New York City
11. Southport Family Dental Expands Team with New Dentist
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Piranha kin wielded dental weaponry even T. rex would have admired
(Date:12/17/2014)... 17, 2014 This prestigious award ... that have made outstanding and innovative contributions to ... progression of private practice physical therapy by the ... Association. , On behalf of Performance Physical Therapy, ... CEO of Performance accepted the award at the ...
(Date:12/17/2014)... (PRWEB) December 17, 2014 Now in ... celebrate the best of the best in senior living ... is only given to communities and agencies that have ... SeniorAdvisor.com site. Of the nearly 100,000 providers currently listed ... Winners of the SeniorAdvisor.com Best of 2015 Awards are ...
(Date:12/17/2014)... -- Poor students get more fruits and vegetables at school ... But, the opposite is true for students from wealthier families. ... school may give a healthy boost to poor students, diets, ... family income level, students all ate a similar amount of ... study was published recently in the journal Preventive Medicine ...
(Date:12/15/2014)... December 15, 2014 A recent survey ... States women as impacting skin health and beauty were: ... of skin care.” Water and health advocate and radio ... recent article describing the survey and the Four C’s.* ... in every category discussed would benefit from paying attention ...
(Date:12/15/2014)... SIMpalm, a leading mobile app ... iPhone for its client, which allows users to keep ... specialized in finding the right wine. At the ... combined sensory, chemistry and wine information. All this information ... fingerprint.” Those wines that are close counterparts to one ...
Breaking Medicine News(10 mins):Health News:Performance Physical Therapy Awarded with Jayne L. Snyder Private Practice of the Year 2014 2Health News:The Inn at Willow Falls - Crest Hill, IL Wins 2015 Best of Assisted Living Award from SeniorAdvisor.com 2Health News:The Inn at Willow Falls - Crest Hill, IL Wins 2015 Best of Assisted Living Award from SeniorAdvisor.com 3Health News:Poor Students Eat Healthier Foods at School, Study Finds 2Health News:Water and health advocate Sharon Kleyne adds a “W” for fresh water to “four C’s of skin care” 2Health News:Water and health advocate Sharon Kleyne adds a “W” for fresh water to “four C’s of skin care” 3Health News:Use WinMatch Connect App to Keep Track of Wines You Like 2
... decided to prepone the Japanese Encephalitis immunisation drive. This has ... they feel that it might not be he right time ... has been decided that the immunisation campaign scheduled to take ... 15, 2006 itself. 5.2 million doses of the Chinese made ...
... method to aid the formation of insulin crystals in ... University of Houston professor and his student, which holds ... // ,Peter Vekilov, associate professor of chemical ... chemical engineering, both in UH's Cullen College of Engineering, ...
... awakening to the growing menace of the drug problem, reports ... ,In order to effectively deal with the problem, police ... openly and stressing on the adverse effects of drugs like ... officials and religious leaders were stressing on the need to ...
... increased risk of fractures in later life, particularly during ... The Children's Hospital of Philadelphia and other researchers analysed ... had first experienced arthritis between ages one and 19. ... larger control group of 207,000 patients in a primary ...
... a recent study, women who use the contraceptive pill, ... risk of developing depression//. ,Adverse Psychiatric Reactions Information ... an effective contraceptive licensed as a hormone treatment for ... ,The women said they experienced serious depression ...
... states with urban states getting more for their premium ... (1-9 workers) pay an average 18% more in health ... workers), when actuarial value--the percentage of total medical expenses ... new Commonwealth Fund-supported study finds. ,In this ...
Cached Medicine News:Health News:Uttar Pradesh To Prepone The Japanese Encephalitis Immunisation Drive 2Health News:Uttar Pradesh To Prepone The Japanese Encephalitis Immunisation Drive 3Health News:Insulin Crystals Holds Promise In Diabetes research 2Health News:Health Insurance Plans Varies among States 2Health News:Health Insurance Plans Varies among States 3
(Date:12/15/2014)... 15, 2014 BerGenBio AS, a ... drug resistant cancers, today announces that it has raised ... from new and existing investors. BerGenBio will ... development of its pipeline of innovative cancer therapeutics, in ... drug candidate, BGB324, a first-in-class selective Axl kinase inhibitor, ...
(Date:12/15/2014)... N.J. , Dec. 15, 2014   Regeneron ... and NYSE: SNY) are collaborating with nationally-recognized patient and ... , an awareness program that will gauge how much ... associated with high LDL-C (bad cholesterol).  American adults are ... take a brief poll and answer a few key ...
(Date:12/15/2014)... FRESH MEADOWS, N.Y. , Dec. 15, 2014 /PRNewswire/ ... using the SPL (Structured Product Labeling) markup language standard, ... need the understanding and skills to work with the ... present a series of three webinars on the benefits ... The three one-hour webinars will be facilitated by ...
Breaking Medicine Technology:BerGenBio Completes NOK90 Million Fundraising 2Have You Been Counted? Regeneron and Sanofi US Join Forces with Leading Cardiovascular Organizations to Raise Awareness of Cholesterol 2Have You Been Counted? Regeneron and Sanofi US Join Forces with Leading Cardiovascular Organizations to Raise Awareness of Cholesterol 3Have You Been Counted? Regeneron and Sanofi US Join Forces with Leading Cardiovascular Organizations to Raise Awareness of Cholesterol 4Have You Been Counted? Regeneron and Sanofi US Join Forces with Leading Cardiovascular Organizations to Raise Awareness of Cholesterol 5Have You Been Counted? Regeneron and Sanofi US Join Forces with Leading Cardiovascular Organizations to Raise Awareness of Cholesterol 6Data Conversion Laboratory Helping Life Sciences Content Producers Understand the Impact and Benefits of Structured Product Labeling 2Data Conversion Laboratory Helping Life Sciences Content Producers Understand the Impact and Benefits of Structured Product Labeling 3
... 5, 2011 CVS/pharmacy, the nation,s leading retail ... club program for the chain-drug channel during the ... 9 PM EST. The CVS/pharmacy ExtraCare Beauty Club, ... provides ExtraCare® card holders who register their cards ...
... MARIETTA, Ga., Jan. 5, 2011 MiMedx ... an integrated developer, manufacturer and marketer of patent protected ... of Surgical Biologics, a leader in the development of ... of surgical indications from amnion membranes. The deal was ...
Cached Medicine Technology:CVS/pharmacy Launches ExtraCare Beauty Club 2CVS/pharmacy Launches ExtraCare Beauty Club 3MiMedx Completes Acquisition of Surgical Biologics 2MiMedx Completes Acquisition of Surgical Biologics 3MiMedx Completes Acquisition of Surgical Biologics 4
... Top cover cold rolled steel ... Work surface polyethylene ... tempered glass 3 UV lamps ... UV lamp interlocked with fluorescent light ...
PCR Workstation brings together UV irradiation and antimicrobial stainless steel to create a dual-attack environment against PCR contamination. PCR Workstation now available with a UV/Air Circulator ...
... Workstation, 30in(w) x 24in(d) x 24in(h). ... PCR amplification reactions. The PCR Workstation ... protects against cross or airborne contamination by ... lab enviornment. Includes two fluorescent lights, ...
... medium throughput reading of entire racks. Its scanner-based ... racks and reads in approximately 10 seconds per ... files and a list of ActiveX controls is ... System includes a USB HP Scanner and software. ...
Medicine Products: