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:2/25/2015)... Ark. , Feb. 25, 2015  ABC ... and billing in the Health and Fitness Industry, ... well as to MYiCLUBonline.  The latest upgrade includes ... the inclusion of cardless check-in via Identity One ... the first time through interactive displays at the ...
(Date:2/24/2015)... This report analyzes the worldwide markets for Iris Biometrics in ... US, Canada , Japan ... , Middle East , and ... for the period 2013 through 2020. Also, a seven-year historic ... are derived from primary and secondary research. Company profiles are ...
(Date:2/24/2015)... NEW YORK , Feb. 24, 2015 This report ... Thousands by the following Segments: Face Biometrics, and Voice Biometrics. The ... , Japan , Europe ... & Africa , and Latin ... period 2013 through 2020. Also, a seven-year historic analysis is provided ...
Breaking Biology News(10 mins):ABC Financial Unveils New Software Enhancements 2ABC Financial Unveils New Software Enhancements 3World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11World Face and Voice Biometrics Industry 2World Face and Voice Biometrics Industry 3World Face and Voice Biometrics Industry 4World Face and Voice Biometrics Industry 5World Face and Voice Biometrics Industry 6World Face and Voice Biometrics Industry 7World Face and Voice Biometrics Industry 8World Face and Voice Biometrics Industry 9World Face and Voice Biometrics Industry 10World Face and Voice Biometrics Industry 11World Face and Voice Biometrics Industry 12World Face and Voice Biometrics Industry 13World Face and Voice Biometrics Industry 14World Face and Voice Biometrics Industry 15World Face and Voice Biometrics Industry 16
... old, have been ill, or suffered an injury, you,ve watched ... slight or gradualis about as common to the human condition ... little about what causes skeletal muscles to atrophy. They know ... and parsing the key actors from the poseurs is tricky. ...
... A broken chromosome is like an unmoored beansprout circling in ... with broken chromosomes, the cell will be killed and so ... Often, it finds a workable substitute: another nearby chromosome. When ... a similar process to exchange genetic material, you,ve got a ...
... found a way to replace up to 50 per cent ... Warwick chemists have taken out much of the cocoa butter ... with tiny droplets of juice measuring under 30 microns in ... dark and white chocolate using what is known as a ...
Cached Biology News:Researchers identify key culprit causing muscle atrophy 2Researchers identify key culprit causing muscle atrophy 3Chromosomal translocations point the way toward personalized cancer care 2Chromosomal translocations point the way toward personalized cancer care 3Fruity science halves fat in chocolate 2
(Date:2/26/2015)... THOUSAND OAKS, Calif. , Feb. 26, 2015 /PRNewswire/ ... has achieved Gold Partner status in Oracle PartnerNetwork. In ... Oracle for its commitment to establish Oracle-related knowledge in ... addressing the challenges of joint customers. Originally ... allows researchers to rapidly zoom in and out of ...
(Date:2/26/2015)... SAN DIEGO , Feb. 26, 2015  Epic ... Prahalad , Ph.D. will present at the 35th Annual ... 2015 at 10:00 a.m. EST in the MIT Room, 3rd Floor. ... Copley Place Hotel in Boston, Mass. Epic is ... real-time detection of genomic and proteomic changes that occur ...
(Date:2/26/2015)...  Spark Therapeutics (NASDAQ: ONCE ) announced ... in the Cowen and Company Health Care Conference on ... the Boston Marriott Copley Place. To access ... the Cowen conference, please visit the "Upcoming Events" section ... Therapeutics website at www.sparktx.com .  A replay of ...
(Date:2/26/2015)... 2015 On Wednesday, February 25, Peggy ... nationwide Clostridium difficile (C. diff) awareness movement, lauded ... by the Centers for Disease Control & Prevention . ... a million infections among Americans in a single year, ... , The study also estimates that 29,000 patients died ...
Breaking Biology Technology:Ceres Becomes Oracle PartnerNetwork Gold Level Partner 2Ceres Becomes Oracle PartnerNetwork Gold Level Partner 3Ceres Becomes Oracle PartnerNetwork Gold Level Partner 4Epic Sciences to Present at 35th Annual Cowen and Company Health Care Conference 2Spark Therapeutics to Participate in the 35th Annual Cowen and Company Health Care Conference 2Peggy Lillis Foundation Lauds CDC's New, More Comprehensive Study on the Burden of C. difficile Infections in the United States 2Peggy Lillis Foundation Lauds CDC's New, More Comprehensive Study on the Burden of C. difficile Infections in the United States 3Peggy Lillis Foundation Lauds CDC's New, More Comprehensive Study on the Burden of C. difficile Infections in the United States 4
... Monday, January 28, The Royal,Marsden Hospital (Sutton, ... Arc Therapy (VMAT)* treatment in the world ... treatment, the hospital,used its existing Elekta Synergy(R) ... system., (Logo: http://www.newscom.com/cgi-bin/prnh/20020318/ELEKTALOGO ), ...
... Caliper Life,Sciences, Inc. (Nasdaq: CALP ) ... 2008 Small and Mid Cap Growth Conference in ... at 4:40 p.m. EST. Kevin,Hrusovsky, President and CEO ... the,company,s business. The live webcast can be accessed ...
... Germany and MINNEAPOLIS, Minnesota, February 11, Bayer HealthCare ... Minneapolis, MN, (Nasdaq: POSS ), announced today ... pursuant to which,MEDRAD will acquire Possis Medical in ... or a total equity value of approximately US-Dollar ...
Cached Biology Technology:Elekta Announces First Volumetric Modulated Arc Therapy Cancer Treatment at Royal Marsden Hospital 2Bayer HealthCare Affiliate MEDRAD and Possis Medical Sign Definitive Merger Agreement 2Bayer HealthCare Affiliate MEDRAD and Possis Medical Sign Definitive Merger Agreement 3Bayer HealthCare Affiliate MEDRAD and Possis Medical Sign Definitive Merger Agreement 4Bayer HealthCare Affiliate MEDRAD and Possis Medical Sign Definitive Merger Agreement 5Bayer HealthCare Affiliate MEDRAD and Possis Medical Sign Definitive Merger Agreement 6
Rabbit polyclonal to FANCE ( Abpromise for all tested applications). entrezGeneID: 2178 SwissProtID: Q9HB96...
Rabbit polyclonal to FANCG ( Abpromise for all tested applications). Antigen: Synthetic peptide: MSRQTTSVGSSC, corresponding to amino acids 1 - 12 of Human FANCG. Entrez GeneID: 2189 Swis...
Rabbit polyclonal to ZNF261 ( Abpromise for all tested applications). entrezGeneID: 9203 SwissProtID: Q14202...
... CELSR3 CELSR3 is an Orphan-U GPCR ... gene is expressed during development at sites of ... in brain, spinal cord, dorsal root ganglion, and ... blood, brain, colon, heart/melanocyte/uterus, lung, nerve, and placenta ...
Biology Products: