Navigation Links
New study first to directly measure body temperatures of extinct species
Date:5/24/2010

GAINESVILLE, Fla. A new study by researchers from five institutions including the University of Florida introduces the first method to directly measure body temperatures of extinct vertebrates and help reconstruct temperatures of ancient environments.

The study, appearing in this week's online early edition of Proceedings of the National Academy of Sciences, describes how scientists could use carbon and oxygen isotopes from fossils to more accurately determine whether extinct animals were warm-blooded or cold-blooded and better estimate temperature ranges during the times these animals lived.

"Without a time machine, it has previously been impossible to directly take the temperature of extinct animals such as dinosaurs or megalodon sharks," said study co-author Richard Hulbert, a vertebrate paleontologist at the Florida Museum of Natural History on the UF campus. "The method described in the study has been shown to work with 12-million-year-old fossils from Florida and the next step is to look at even older fossils. For example, we have no teeth of Titanoboa, the largest snake ever discovered, but we could use 60-million-year-old crocodylian teeth from the same deposit to find out more about the snake's environment."

Funded in part by the National Science Foundation, the new "clumped-isotope" paleothermometer method used in the study analyzes two rare heavy isotopes, carbon-13 and oxygen-18, found in tooth enamel, bones and eggshells.

"Clumping is temperature dependent, so at low temperatures you get more clumping together in a mineral while high temperatures mean less clumping," said lead author and California Institute of Technology postdoctoral scholar Robert Eagle. "If you can measure the clumping accurately enough, you can work out the temperature at which a mineral formed. In the case of teeth and bone, this will be the body temperature of the organism."

The researchers first tested the method on moder
'/>"/>

Contact: Richard Hulbert
rhulbert@flmnh.ufl.edu
352-273-1930
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Scientists to study impact of gulf oil spill on marine food webs
2. Obesity remains an economic issue, Seattle obesity study finds
3. NIH funds multicenter glue grant to study enzyme function
4. TEEB study leader emphasizes urgent need for action on biodiversity loss
5. Study uncovers optimal ecology of bioinsecticide
6. New lab manual for studying the biology of the nervous system in Drosophila is released
7. NIH grants K-State researcher nearly $1.5 million to study antibiotic-resistant bacteria
8. UT study finds viruses in untreated East Tennessee drinking water
9. New study reveals ways to better inhibit blood clots
10. Hammerhead shark study shows cascade of evolution affected size, head shape
11. Gene fusions may be the smoking gun in prostate cancer development, U-M study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/1/2014)... a life without light. They emit echolocation sounds and use ... obstacles or prey. In their brains, they have a spatial ... researchers at Technische Universitt Mnchen (TUM) has shown for the ... , Closer objects appear larger , ... the number of activated neurons in its brain increases. As ...
(Date:8/31/2014)... highly infectious bacteria C. diff , that causes ... a team at the University of Leicester. , Using ... it is possible to identify the unique ,smell, of ... diagnosis of the condition., What is more, the Leicester ... strains of the disease simply from their smell ...
(Date:8/31/2014)... in Nature Climate Change , suggests that if ... not exceed, the global targets for total greenhouse gas (GHG) ... should all think carefully about the food we choose and ... world is just one of a number of actions that ... ensure there is enough food for all. , As ...
Breaking Biology News(10 mins):Zooming in for a safe flight 2Scientists develop 'electronic nose' for rapid detection of C. diff infection 2Changing global diets is vital to reducing climate change 2Changing global diets is vital to reducing climate change 3Changing global diets is vital to reducing climate change 4
... clear change in salinity has been detected in the ... global rainfall and evaporation cycle., In a paper published ... the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and ... of salinity in the global ocean during the past ...
... scientists has found there has been a massive reduction in ... of Antarctica.,Comparing detailed measurements taken during the Australian Antarctic program,s ... back to 1970, scientists estimate there has been as much ... Antarctic Bottom Water, the cold dense water that drives global ...
... Berlin, Germany, May 21, 2012 IMPACT World+, ... methodology was launched today in Berlin, Germany during the ... Meeting. The event featured the results of this innovative ... experts and researchers from five countries., The production and ...
Cached Biology News:Earth's water cycle intensifying with atmospheric warming 2Latest Southern Ocean research shows continuing deep ocean change 2Latest Southern Ocean research shows continuing deep ocean change 3Launch of IMPACT World+ 2
(Date:8/28/2014)... A new research platform uses a ... tiny structures undergoing stress and heating, an ... designs for microelectronics and batteries., This new ... about how heating and the surface stress ... Researchers have discussed the merits of surface-stress ...
(Date:8/28/2014)... 2014  Next month, executives from clinical trial marketing firm ... beginning with Patient-Centered Clinical Trials 2014 , to be ... , September 4-5. Patient recruitment experts Bonnie A. ... will share insights on the benefits of employing an ... – from media to mobile apps – can be used ...
(Date:8/28/2014)... work by a Florida State University research team has ... your temperature, emit white light, and convert photon energy ... like a butterfly. , Biwu Ma, associate professor in ... FAMU-FSU College of Engineering, created the molecule in a ... discover that his creation has many other unique capabilities. ...
(Date:8/28/2014)... Boston, MA (PRWEB) August 28, 2014 ... of wholesale construction materials, selected SoundConnect ... of their cloud based audio and web conferencing ... configured to support PrimeSource’s employees’ needs. SoundConnect ... technologies. , PrimeSource Building Products will be ...
Breaking Biology Technology:New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3BBK Worldwide Leads Sessions at Key September Events 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2PrimeSource Chooses SoundConnect as Collaboration Provider 2
... accurately while minimizing ... 6 During his annual,physical check-up in March, David Kelver,s ... the right one looked a bit swollen. The,doctor concluded, however, ... own, and sent him home. Several months later, Kelver, a ...
... showing that Microsoft SQL Server ... 1 petabyte., REDMOND, Wash., Nov. 6 ... management and business,intelligence platform, Microsoft SQL Server 2008, ... scale new heights in data warehousing,and transaction processing., ...
... at Rodman & Renshaw,10th Annual Healthcare Conference" issued on ... over PR Newswire, we are advised by a,representative of ... the first paragraph. Complete, corrected release follows:, , ... the development of microRNA-based diagnostics, announced today it,will present ...
Cached Biology Technology:Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 2Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 3Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 4Could Database Software Help Cure Alzheimer's and Save the Earth? 2Could Database Software Help Cure Alzheimer's and Save the Earth? 3/C O R R E C T I O N -- Rosetta Genomics Ltd/ 2/C O R R E C T I O N -- Rosetta Genomics Ltd/ 3/C O R R E C T I O N -- Rosetta Genomics Ltd/ 4/C O R R E C T I O N -- Rosetta Genomics Ltd/ 5/C O R R E C T I O N -- Rosetta Genomics Ltd/ 6
Mouse monoclonal [6C3] to JAB1 ( Abpromise for all tested applications). entrezGeneID: 10987 SwissProtID: O15386...
Human TGF-beta RIIb Affinity Purified Polyclonal Ab...
Human FGF R2 (alpha isoforms) MAb (Clone 98706)...
dithiothreitol, sulfhydryl reducing agent, C4H10O2S2; MW: 154.24, 97% pure (minimum), CAS No: 27565-41-9, store at -20 C ...
Biology Products: