Navigation Links
Details of ancient shark attack preserved in fossil whale bone
Date:11/10/2011

A fragment of whale rib found in a North Carolina strip mine is offering scientists a rare glimpse at the interactions between prehistoric sharks and whales some 3- to 4-million years ago during the Pliocene.

Three tooth marks on the rib indicate the whale was once severely bitten by a strong-jawed animal. Judging by the 6 centimeter spacing between tooth marks, scientists believe the attacker was a mega toothed shark Carcharocles megalodon, or perhaps another species of large shark which was alive at that time. The whale appears to have been an ancestor of a great blue or humpback.

"One certainly doesn't expect to find evidence of animal behavior preserved in the fossil record, but this fossil shows just that, a failed predation," explains Stephen Godfrey, paleontologist at the Calvert Marine Museum in Solomons, Md. and a Smithsonian research collaborator, who discovered the fossil. "The shark may have gone away with a mouthful, but it didn't kill the whale"

Scientists know the whale survived because "most of the fossil fragment is covered with a type of bone known as woven bone, which forms rapidly in response to localized infection," explains Don Ortner, an anthropologist at the Smithsonian's National Museum of Natural History and authority on the effect of disorders on skeletal tissue. "Biomechanically woven bone is not very strong. The body eventually remodels it into compact bone, but it takes time." CT scans reveal evidence of inflammation in the bone marrow consistent with infection.

The presence of the woven bone indicates the healing was incomplete and the whale died, the scientists estimate, between two and 6 weeks after the attack. The whale's death may have been unrelated to its infection and injury, Ortner says. "We don't know why it died."

Based on the curvature of the shark's jaw, as indicated by the arc of the impressions of its teeth, the scientists believe the shark was relatively small
'/>"/>

Contact: Brian Ireley
ireleyb@si.edu
Smithsonian
Source:Eurekalert  

Page: 1 2

Related biology news :

1. ORNL neutrons, simulations reveal details of bioenergy barrier
2. BGI releases a complete de novo E. coli O104 genome and details of their detection kit
3. What is a laboratory mouse? Jackson, UNC researchers reveal the details
4. Study details path to sustainable aviation biofuels industry in Northwest
5. Imaging technology reveals intricate details of 49-million-year-old spider
6. Polarized microscopy technique shows new details of how proteins are arranged
7. Scripps Research team discovers new details about medically important protein family
8. Book details viability of wood to energy market in southern wildland-urban interface areas
9. Research into chromosome replication reveals details of heredity dynamics
10. Fruit fly study digs deeper into poorly understood details of forming embryos
11. Scientists unravel more details of plant cell-wall construction
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Details of ancient shark attack preserved in fossil whale bone
(Date:4/20/2015)... April 20, 2015 Huntington Memorial Hospital is ... implant a new miniaturized, wireless monitoring sensor to manage ... first and only FDA-approved heart failure monitoring device that ... used by physicians to manage heart failure. ... implanted in the pulmonary artery (PA) during a non-surgical ...
(Date:4/17/2015)... Canada , April 17, 2015 ... growing security concerns, and technological advancement to drive ... until 2020   According ... Saudi Arabia Biometric Systems Market Forecast &  Opportunities, 2020 ", biometric systems ... is projected to register growth at CAGR of ...
(Date:4/14/2015)... , April 14, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, ... for the 2015 New York Design Awards under the ... New York City Design Awards are part of a ... over 2,500 ratings from the marketplace, industry and judging ...
Breaking Biology News(10 mins):Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3
... NY -- An international team of scientists has discovered ... with plants and one increasingly linked to opportunistic infections ... use of the plant-associated strain for a range of ... at the U.S. Department of Energy,s (DOE) Brookhaven National ...
... HILL, N.C. In 2004, researchers at the University ... Center announced a crucial discovery in the understanding of ... tissues age, the expression of a key protein, called ... p16INK4a is a tumor suppressor protein, cancer researchers are ...
... Berkeley-- University of California, Berkeley, researchers have found what ... piece of the puzzle about how stress causes sexual ... levels of stress hormones - glucocorticoids such as cortisol ... releasing hormone (GnRH), and subsequently suppresses sperm count, ovulation ...
Cached Biology News:Plant microbe shares features with drug-resistant pathogen 2Plant microbe shares features with drug-resistant pathogen 3Test detects molecular marker of aging in humans 2Stress puts double whammy on reproductive system, fertility 2Stress puts double whammy on reproductive system, fertility 3
(Date:5/6/2015)... The Remedy Group , the premier ... specialty pharmacy industry, will be exhibiting, presenting, and is ... Summit. The Summit will be held May 4-8, 2015 ... the largest annual gathering for the specialty pharmacy industry. ... providers, pharma/biotech manufacturers, and payers, to learn more about ...
(Date:5/5/2015)... 2015 /PRNewswire/ - Aptose Biosciences Inc. (NASDAQ: APTO, TSX: APS) ... the three months ended March 31, 2015 and provided ... in Canadian dollars. Effective July 17, ... May 31 to December 31. As a result of ... for the three months ended March 31, 2015, while ...
(Date:5/5/2015)... 2015 VetStem Biopharma, proudly announces ... Jeffrey Schaffer, DVM, as Director of Veterinary Professional ... of experience in the veterinary regenerative medicine field ... our veterinarian lead organization”. Dr. Alexis Nahama, ... will be responsible for all technical activities in ...
(Date:5/5/2015)... 2015 Psyche Systems Corporation and Luminate Health ... first-of-its-kind platform that helps labs comply with new federal ... the way patients engage with these results, and improves ... provides a HIPAA-compliant digital platform that gives labs an ... their lab results, and uniquely connects labs, physicians, and ...
Breaking Biology Technology:The Remedy Group presenting at the 2015 Armada Specialty Pharmacy Summit: The Pitfalls to Growth and Maintaining the Patient Experience 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 3Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 4Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 5Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 6Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 7Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 8Leading Regenerative Veterinary Medicine Company, VetStem Biopharma announces the addition of Dr Jeffrey Schaffer as the Director of Veterinary Professional Services. 2Psyche Systems Corporation Forms Strategic Alliance with Luminate Health to Provide First-of-its-kind Patient Access Solution 2Psyche Systems Corporation Forms Strategic Alliance with Luminate Health to Provide First-of-its-kind Patient Access Solution 3
... nanoscience is needed for the world to overcome the ... leading scientist from CSIRO Materials Science and Engineering and ... (Ken) Ostrikov of the Plasma Nanoscience Centre Australia, CSIRO ... Journal of Physics D: Applied Physics , the ...
... April 13, 2011 Today Massachusetts Life Sciences Center ... officials,  Organogenesis, Inc. President & CEO Geoff MacKay and ... Dan Road.  Upon completion in 2013, the company expects ... cell manufacturing plant.   Organogenesis is in ...
... Cellular Dynamics International (CDI), the world,s largest producer ... cell (iPSC) lines, today announced it has strengthened its ... differentiation technology from ViaCyte, Inc. , a stem ... this patented methodology in the development and production of ...
Cached Biology Technology:Plasma nanoscience needed for green energy revolution 2Organogenesis, Life Sciences Center Break Ground on World's Largest Automated Living Cell Manufacturing Plant 2Organogenesis, Life Sciences Center Break Ground on World's Largest Automated Living Cell Manufacturing Plant 3Organogenesis, Life Sciences Center Break Ground on World's Largest Automated Living Cell Manufacturing Plant 4Cellular Dynamics Licenses Technology From ViaCyte 2Cellular Dynamics Licenses Technology From ViaCyte 3
Request Info...
Request Info...
Request Info...
... Art GLP facility with capabilities from ... fermentation. Coordinated process development from ... operation capable of simultaneous production runs ... Hosts include: Bacteria, Yeast, Fungi, ...
Biology Products: