Navigation Links
Holes in fossil bones reveal dinosaur activity
Date:7/8/2011

New research from the University of Adelaide has added to the debate about whether dinosaurs were cold-blooded and sluggish or warm-blooded and active.

Professor Roger Seymour from the University's School of Earth & Environmental Sciences has applied the latest theories of human and animal anatomy and physiology to provide insight into the lives of dinosaurs. The results will be published this month in Proceedings B, the Proceedings of the Royal Society B (Biological Sciences), and can now be found online at: http://dx.doi.org/10.1098/rspb.2011.0968

Human thigh bones have tiny holes known as the 'nutrient foramen' on the shaft that supply blood to living bone cells inside. New research has shown that the size of those holes is related to the maximum rate that a person can be active during aerobic exercise. Professor Seymour has used this principle to evaluate the activity levels of dinosaurs.

"Far from being lifeless, bone cells have a relatively high metabolic rate and they therefore require a large blood supply to deliver oxygen. On the inside of the bone, the blood supply comes usually from a single artery and vein that pass through a hole on the shaft the nutrient foramen," he says.

Professor Seymour wondered whether the size of the nutrient foramen might indicate how much blood was necessary to keep the bones in good repair. For example, highly active animals might cause more bone 'microfractures', requiring more frequent repairs by the bone cells and therefore a greater blood supply.

"My aim was to see whether we could use fossil bones of dinosaurs to indicate the level of bone metabolic rate and possibly extend it to the whole bo
'/>"/>

Contact: Professor Roger Seymour
roger.seymour@adelaide.edu.au
44-784-817-4350
University of Adelaide
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Cholesterol-lowering drugs and the effect on muscle repair and regeneration
2. Penn biophysicists create new model for protein-cholesterol interactions in brain and muscle tissue
3. UC San Diego bioengineers fill holes in science of cellular self-organization
4. MSU researcher studies ties between cholesterol drugs, muscle problems
5. A scientific breakthrough on the control of the bad cholesterol
6. Researchers learn that some good cholesterol isnt good enough
7. New genes present drug targets for managing cholesterol and glucose levels
8. Hypertension and cholesterol medications present in water released into the St. Lawrence River
9. Lowering your cholesterol may decrease your risk of cancer
10. Great Lakes sinkholes host exotic ecosystems
11. Cholesterol-busting bug with a taste for waste
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Holes in fossil bones reveal dinosaur activity
(Date:9/2/2014)... Bavaria, the Tithonian Konservat-Lagersttte of lithographic limestone is ... of emblematic fossils from that area (for example, ... found fossil insects in the French equivalent of ... species representing the oldest known water treader. , ... Bavarian outcrops, fewer fossils have been obtained from ...
(Date:9/2/2014)... the September issue of BioScience , Samantha ... communities in the aftermath of the 2010 Macondo ... hydrocarbon-degrading microbes to the unprecedented deepwater oil plume., ... the responses of indigenous microbial communities to a ... within cells known as ribosomal RNA and analyses ...
(Date:9/2/2014)... The American Society of Human Genetics (ASHG) and ... of the National Institutes of Health, have named ... University in Chicago, the newest ASHG/NHGRI Genetics and ... , The Genetics and Public Policy Fellowship is ... implement genetics-related health and research policy at a ...
Breaking Biology News(10 mins):Exceptionally well preserved insect fossils from the Rhône Valley 2Changing microbial dynamics in the wake of the Macondo blowout 2ASHG and NHGRI award genetics and public policy fellowship 2
... identifying a novel compound that primes a plant,s immune system, ... Chicago may be on a path to developing disease-resistant plants. ... team that includes Tim Tschaplinski of the Department of Energy,s ... the immunity response in Arabidopsis, a small flowering plant related ...
... tumors that arise from glial (supporting) cells of the ... grow fine extensions that infiltrate normal brain tissue and, ... surrounding tissue. Therefore, it is almost impossible to remove ... radical surgical removal of the tumor would substantially improve ...
... in German . Europe,s borders have ... from other parts of the world: from the American ... on, hybridise with, parasitise and out-compete native species. They ... landscapes and impact upon agriculture, forestry and fisheries. ...
Cached Biology News:Researchers discover primer to plant defense system 2Fluorescent cancer cells to guide brain surgeons 2Will Europe at last unite to combat thousands of alien invaders? 2Will Europe at last unite to combat thousands of alien invaders? 3
(Date:9/2/2014)... and NEW PROVIDENCE, N.J. , ... Inc. is a corporate sponsor for MassBio,s 20th Annual ... organization, the MassBioEd Foundation. The event will be held ... in Plymouth, Massachusetts . ... in Massachusetts through educational programs, ...
(Date:9/2/2014)... critical, yet often overlooked factor in the medical ... effects of aggregation on both radiofrequency heating and ... oxide nanoparticles (IONPs), including detailed analysis of the ... is shown to produce significant reductions in both ... new method to quantify and correlate these effects ...
(Date:9/2/2014)... about a billionth of a meter in size, are ... can benefit human health, as in some innovative early ... through viruses, air pollution, traffic emissions, cosmetics, sunscreen and ... in St. Louis, led by Lan Yang, PhD, the ... Systems Engineering, and their collaborators at Tsinghua University in ...
(Date:9/2/2014)... used for detailed studies of what happens on the ... research, among other applications. A group of researchers from ... cell membranes form across a large number of vertical ... the interior of a cell and its surroundings takes ... surface layer that holds the cell together and that ...
Breaking Biology Technology:Linde helps fund STEM education in Massachusetts 2Linde helps fund STEM education in Massachusetts 3Accounting for biological aggregation in heating and imaging of magnetic nanoparticles 2Engineers develop new sensor to detect tiny individual nanoparticles 2Engineers develop new sensor to detect tiny individual nanoparticles 3Nano-forests to reveal secrets of cells 2
... 4, 2011 Genesis Biopharma, Inc. (OTC Bulletin Board: ... cancer therapies, today announced that it closed private offerings ... entered into definitive agreements with accredited investors to purchase ... common stock for a purchase price of $1.00 per ...
... Regeneron Pharmaceuticals, Inc. (Nasdaq: REGN ) ... Morgan Healthcare Conference on Monday, January 10, 2011.  The ... p.m. Eastern Time).  The session may be accessed through ... Investor Relations page.  An archived version of the presentation ...
... ST. LOUIS, Dec. 30, 2010 Sigma-Aldrich® Corporation ... has acquired all outstanding shares of Cerilliant Corporation ... analytical chemistry product portfolio and to continue to ... leading supplier of high quality reference standards and ...
Cached Biology Technology:Genesis Biopharma Raises $845,000 in Private Financings 2Sigma-Aldrich Acquires Cerilliant Corporation to Strengthen its Analytical Chemistry Portfolio 2Sigma-Aldrich Acquires Cerilliant Corporation to Strengthen its Analytical Chemistry Portfolio 3Sigma-Aldrich Acquires Cerilliant Corporation to Strengthen its Analytical Chemistry Portfolio 4
... These versatile vacuum cups provide flexible ... curved, or irregular surfaces. ,PFG: Flat ... Bellows cup ,PCG: Multiple Bellows cup ... from 25 to 200 mm , ...
Curcumin is an extract of turmeric root with antioxidant, anti-tumor promoter, and anti-inflammatory properties. Curcumin inhibits the induction of NOS in macrophages....
UGT1A6 (D-20)...
... smallest electronic pressure controller available measuring 26 ... this unit specifically for the analytical instrumentation ... carrier gas flow control, microfluidic flow control, ... focusing, the OEM-EPC offers external pressure sensor ...
Biology Products: