Navigation Links
Researcher explores the evolution of largest mammals over the past 100 million years
Date:11/29/2010

Researchers have demonstrated that the extinction of dinosaurs 65 million years ago paved the way for mammals to get bigger about a thousand times bigger than they had been.

The study, released today in the prestigious journal Science, is the first to quantitatively explore the patterns of body size of mammals after the demise of the dinosaurs.

The research, funded by a National Science Foundation Research Coordination Network grant, was led by scientists at the University of New Mexico and brought together an international team of palaeontologists, evolutionary biologists, and macroecologists from universities around the world.

To document what happened to mammals after the extinction of dinosaurs, researchers collected data on the maximum size for major groups of land mammals on each continent, including Perissodactyla, odd-toed ungulates such as horses and rhinos; Proboscidea, which includes elephants, mammoth and mastodon Xenarthra; the anteaters, tree sloths, and armadillos; as well as a number of other extinct groups. The researchers spent three years compiling the large database.

Dr Alistair Evans, a co-author on the paper and an Australian Research Fellow at Monash University, said the database is unique.

"The database allows us for the first time to compare maximum size of mammals on different continents since the extinction of the dinosaurs."

The goal of the research was to revisit key questions about size, specifically in mammals.

"Size affects everything about an animal, from feeding and reproduction to extinction. We really wanted to know how big the many different groups of mammals evolved to be, and how quickly they got there - we were looking for the biggest of the big," said Dr Evans.

Researchers found that mammals grew from a size of about ten kilograms when they were sharing the Earth with dinosaurs to a maximum of 17 tonnes afterwards. Moreover, the pattern
'/>"/>

Contact: Megan Gidley
media@monash.edu
619-903-4840
Monash University
Source:Eurekalert

Page: 1 2

Related biology news :

1. University of Minnesota engineering researcher finds new way to fight antibiotic-resistant bacteria
2. Iowa State, Ames Lab researcher develops new way to study single biological molecules
3. Researchers kick-start ancient DNA
4. Gene links to anorexia found by Childrens Hospital of Philadelphia researchers
5. UGA researchers identify key enzyme that regulates the early growth of breast cancer cells
6. Researchers insert identification codes into mouse embryos
7. Researchers learn that genetics determine winter vitamin D status
8. Researchers link an African lizard fossil in Africa with the Komodo dragon in Indonesia
9. FSU researchers helping K-12 teachers bring science down to Earth
10. As Arctic temperatures rise, tundra fires increase, researchers find
11. Researchers discover potential genetic target for heart disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... China , July 31, 2015 The 10 ... will be held by BGI from October 22-25, 2015, in ... The conference is celebrating its 10 th anniversary ... one of the world,s most influential annual meetings in the ... and enjoyable scientific gatherings. ICG-10 focuses on ...
(Date:7/27/2015)... ANGELES , July 27, 2015   ... evidence- and experience-based clinical improvement solutions, today announced ... solution is now available on Android smartphones and ... inpatient and post-care organizations can use ZynxCarebook to ... same patient,s condition, streamline care transitions to other ...
(Date:7/21/2015)... 21, 2015 Today, ZTE announced its Android ... well as expected revenues in 2015 that relate to sales of ... guidance of approximately 2,200 MSEK for 2015. Jörgen Lantto, ... smartphone manufacturer in China and we are ... 5 for Axon , its ...
Breaking Biology News(10 mins):The 10th International Conference on Genomics (ICG-10) to Open in October 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2
... researchers have discovered a novel molecular mechanism that can ... progression of some cancers. In the March 23 online ... scientists from the University of Montreal explain how they ... of inflammatory cytokines that normally activate the immune system, ...
... diagnosis is critical in treating Lyme disease. However, ... initially misdiagnosed because currently available serological tests have ... of infection. Misdiagnosed patients may go untreated and ... face longer and more invasive treatments, as well ...
... National Renewable Energy Laboratory (NREL) recently convened the ... with a mission to enable securitization of solar ... marketplace. SAPC,s primary efforts center on the ... documents relevant to residential and commercial deployment, and ...
Cached Biology News:University of Montreal researchers discover how drug prevents aging and cancer progression 2Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 2Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 3Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 4NREL assembles industry working group to advance solar securitization 2
(Date:8/4/2015)... 4, 2015  Natera, Inc. (Nasdaq: NTRA ), ... of circulating cell-free DNA, today announced that it will ... 2015 after the market close on August 12, 2015. ... 1:30 p.m. PT (4:30 p.m. ET) to discuss its ... 2015 Results Conference Call  Date: , Wednesday, August 12, ...
(Date:8/4/2015)... , Aug. 4, 2015   California Cryobank ... recent acquisition of LifeLine Cryogenics, an east coast cord ... New York tristate area. LifeLine clients ... all prepaid contracts will be honored. Since ... services, offering storage of sperm, eggs, embryos, and cord ...
(Date:8/3/2015)... -- Halozyme Therapeutics, Inc. (NASDAQ: HALO ) will webcast ... 2015 on Monday, August 10, 2015 at 4:30 p.m. ... and chief executive officer, will lead the call. On ... for the second quarter 2015. The call ... Halozyme,s corporate website and a recording will be made ...
(Date:8/3/2015)... August 3, 2015 At the ... Hospital waved the shortfall of Jude Liversage,s ... normally for the first time.      (Photo: ... http://photos.prnewswire.com/prnh/20150803/254229 ) The Selective Dorsal Rhizotomy ... him to carry out his wish to kick a ...
Breaking Biology Technology:Natera to Release Second Quarter 2015 Results on August 12, 2015 2FamilyCord Announces Acquisition of LifeLine Cryogenics 2Halozyme to Host Second Quarter 2015 Financial Results Conference Call 2Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 2Cerebral Palsy Operation by The Portland Hospital Allows a Boy to Stand Properly for the First Time 3
... refined technique for trapping and manipulating nanoparticles, researchers at ... extended the trapped particles, useful life more than tenfold.* ... moths," promises to give experimenters the trapping time they ... way to working with nanoparticles inside biological cells without ...
... China Pharma Holdings, Inc. ("China Pharma") (NYSE Amex: ... in China, today announced that it plans to release its ... opens on Tuesday, May 15, 2012. The ... on May 15, 2012 to discuss first quarter of year ...
... Chapter of the National Investor Relations Institute (NIRI) will ... for Establishing & Maintaining a Successful Investor Relations Program" ... The panel of seasoned IR professionals will discuss ... unique perspectives on what makes an effective Investor Relations ...
Cached Biology Technology:Light touch keeps a grip on delicate nanoparticles 2China Pharma Holdings, Inc. to Report First Quarter of Fiscal Year 2012 Financial Results on May 15, 2012 2NIRI San Diego May Meeting: Seasoned IROs Discuss "Tips & Tactics for Establishing and Maintaining A Successful Investor Relations Program" 2NIRI San Diego May Meeting: Seasoned IROs Discuss "Tips & Tactics for Establishing and Maintaining A Successful Investor Relations Program" 3
Rabbit polyclonal to JAK1 (phospho Y1022 + Y1023) ( Abpromise for all tested applications). entrezGeneID: 3716 SwissProtID: P23458...
Cytofix/Cytoperm Plus Kit with GolgiPlug 250 Tests...
The BD PhosFlow Fix Buffer I can be used for the simultaneous fixation and permeabilization of cells prior to intracellular staining. Applications: Intracellular Staining (Flow) Storage Temperature:...
Oxidative Stress-Inducible Protein Tyrosine Phosphatase...
Biology Products: