Navigation Links
'Dinosaur bends' caused by prolonged diving
Date:8/16/2012

Dinosaurs-like creatures may have injured themselves during leisurely deep-sea diving trips and not from resurfacing too quickly, as previously thought.

A recent study identified bone deformities on the fossilized remains of Ichthyosarians, which were giant dolphin-like reptiles that first appeared about 245 million years ago.

The lesions were similar to those human divers develop as a result of changes in body pressure, and suggest the reptiles suffered from a version of 'the bends'.

A new analysis by University of Melbourne pathologist Associate Professor John Hayman published in the latest edition of the Naturwissenschaften: Science of Nature journal sought to explain what may have caused the bone lesions.

That research argues the scarring may be the result of deep diving and spending too long at depth, causing excess nitrogen to be dissolved in the body, and not from quick ascents as previously thought.

"Ichthyosarians probably evolved the ability to dive deeper and to remain at depth for longer periods," Professor Hayman said.

"An alternative explanation is that the reptiles developed decompression sickness from being trapped in shallow water by predators.

"It wasn't from sudden and rapid ascents," he said.

Associate Professor Hayman said the dangerous practice of deep sea diving wouldn't have affected the replites' long-term survival because any ill effects would have developed later in life.

"The lesions wouldn't have been enough to kill the animal, and wouldn't have affected it's ability to hunt or breed."

Professor Hayman said the new analysis was possible because structure of modern humans' necks are very similar to the prehistoric reptiles.

"The arterial blood supply to the humerus and other bones such as the neck of the femur is highly conserved. It has remained much the same
'/>"/>

Contact: Ryan Sheales
ryan.sheales@unimelb.edu.au
61-383-443-845
University of Melbourne
Source:Eurekalert

Page: 1 2

Related biology news :

1. Dinosaur fossil: Even specialized predators didnt turn down free meals
2. Exploding dinosaur hypothesis implodes
3. Duck-billed dinosaurs endured long, dark polar winters
4. Jurassic pain: Giant flea-like insects plagued dinosaurs 165 million years ago
5. Gaseous emissions from dinosaurs may have warmed prehistoric earth
6. Dinosaurs were warm-blooded reptiles
7. Newly discovered dinosaur implies greater prevalence of feathers
8. Feathered saurians -- downy dinosaur discovered
9. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
10. Engineering technology reveals eating habits of giant dinosaurs
11. Childhood virus infection linked to prolonged seizures with fever
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... FRANKFURT. Truffles, along ... world. Because they grow underground, people use trained dogs or ... is not only of interest to gourmets. A group of ... University Frankfurt have discovered that the smell of white truffles ... truffle fruiting bodies. , White truffles from the Piedmont region ...
(Date:9/30/2014)... Researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich report that ... cells more sensitive to chemotherapeutic drugs. They have ... a new target for anti-tumor agents. , ... Professor Stephan Sieber of the Technische Universitt Mnchen ... a potential new weapon in the fight against ...
(Date:9/30/2014)... news release is available in German . ... in their behavioural response to risky situations such as ... for Ornithology now found in a long-term study on ... with both metabolic rate and ambient temperature. High metabolic ... behaviour, as in these scenarios birds were more likely ...
Breaking Biology News(10 mins):On the trail of the truffle flavor 2Cancer therapy: Driving cancer cells to suicide 2Risky metabolism 2
... the University of Bonn, working in collaboration with scientists ... previously unknown regulatory mechanism in the process of bone ... the treatment of osteoporosis. More than four million people, ... illness in Germany alone. In recognition of the importance ...
... L-arginine following a heart attack does not improve certain ... an increased risk of death, according to a study ... is a widely available dietary supplement and is publicized ... failure and sexual dysfunction, according to background information in ...
... The discovery of a possible hibernation hormone in the ... researchers reported in the April 7, 2006 issue of ... survive unscathed--in a state of suspended animation--under the harshest ... are confirmed, the hormone would represent the first essential ...
Cached Biology News:New weapon in battle against osteoporosis 2New weapon in battle against osteoporosis 3An elephant tail 2Possible brain hormone may unlock mystery of hibernation 2Possible brain hormone may unlock mystery of hibernation 3
(Date:10/1/2014)... California (PRWEB) October 01, 2014 ... the National Science Foundation to expand their bioCAD/CAM software ... build and modify DNA. The Small Business Innovation Research ... the “j5” technology under exclusive license from the Lawrence ... Joint BioEnergy Institute , an LBNL laboratory that develops ...
(Date:10/1/2014)... PHILADELPHIA , October 1, 2014 ... plans to software invited to engage around the theme, ... 29-30     Elsevier ... information products and services, will host a gathering of ... discuss issues and trends impacting healthcare today and in ...
(Date:9/30/2014)... This news release is available in German . ... at the Technische Universitt Mnchen (TUM) have demonstrated a ... Their experiments show that future computer chips could be ... transistors. As the main enabling technology of the semiconductor ... fundamental limits, the TUM researchers and collaborators at the ...
(Date:9/30/2014)... NEW YORK , Sept. 30, 2014 /PRNewswire/ ... trends and segments with highest potential revenues Do ... Visiongain,s updated report gives you revenue predictions for ... ahead. For those therapies you find financial data, ... new analysis you get sales forecasts to 2024 ...
Breaking Biology Technology:TeselaGen Receives $750k NSF SBIR Phase II Award 2TeselaGen Receives $750k NSF SBIR Phase II Award 3Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3A new dimension for integrated circuits: 3-D nanomagnetic logic 2A new dimension for integrated circuits: 3-D nanomagnetic logic 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5
... THOR ), a world leader in products ... healthcare,executive Steven H. Collis to its board of ... Thoratec board to nine directors. Collis, who ... is,executive vice president of AmerisourceBergen Corporation, and president ...
... Kline Report on Smart Coatings Cites Immediate Opportunities in ... Coatings, Cool Paint, and Smart Glass -, LITTLE ... and Medicaid that they will no longer reimburse expenses ... the paint and coatings industries to sell antimicrobial coatings,according ...
... New Era of Adaptive CT ... ... Solutions, (http://www.usa.siemens.com/medical ) has expanded the SOMATOM Definition(TM),family of computed tomography ... most challenging clinical situations. The SOMATOM,Definition family consists of the SOMATOM ...
Cached Biology Technology:Thoratec Announces Appointment of Steven H. Collis to Board of Directors 2Thoratec Announces Appointment of Steven H. Collis to Board of Directors 3Change in Medicare and Medicaid Legislation Creates Market for Antimicrobial Coatings In the U.S. 2Siemens Expands the SOMATOM Definition(TM) Line With World's First Adaptive CT Scanner 2Siemens Expands the SOMATOM Definition(TM) Line With World's First Adaptive CT Scanner 3Siemens Expands the SOMATOM Definition(TM) Line With World's First Adaptive CT Scanner 4Siemens Expands the SOMATOM Definition(TM) Line With World's First Adaptive CT Scanner 5
... Clone/PAD: ZMD.467. Immunogen: Synthetic ... of the human rat mouse dog ... Specific for the human occludin protein. ... cell lysates). Reactivity with rat ...
...
TRIzol Reagents are ready-to-use monophasic solutions of phenol and guanidine isothiocyanate suitable for isolating total RNA DNA and proteins (16)....
UltraPure DNase/RNase-Free Distilled Water is designed for use in all molecular biology applications. It is 0.1-m membrane-filtered and tested for DNase and RNase activity....
Biology Products: