Navigation Links
Fossil teeth and human development

An analysis of the growth patterns in fossil teeth has thrown new light on the recent origin of the extended growth and development pattern that sets human beings apart from their primate ancestors, according to an article in the issue of Nature.//

Based on the analysis of the fossil teeth, researchers from University College, London and Penn State University determined that the relatively long 15 to 25 year development period of humans compared with 11 or 12 years for primates — came about more recently in the evolutionary process than previously thought. "Dental development is a good measure of overall growth and development," study author Alan Walker, professor of anthropology and biology at Penn State University, said in a news release. "Teeth grow in an incremental manner like trees or shells, preserving a record of their growth with daily marks along the prisms that make up the enamel."

By making thin sections of modern and fossil teeth, the researchers were able to count the daily incremental markings with the enamel of humans, apes and fossil "hominin" species to measure up the rates of tooth formation. Based on the dental validation, the human-like development period does not appear until the Neanderthal period about 100,000 years ago.

Previous theories placed this evolutionary milestone as far back as 1.5 million years ago, corresponding with the first evidence of modern human-like characteristics such as body proportions, body weight and small teeth and jaws. "It seems our prolonged period of growth and development may be a more recent evolutionary acquisition that arose in step with our comparatively recent development of a larger, modern, human-sized brain," Dr. Walker said.


'"/>




Page: 1

Related medicine news :

1. Well Preserved DNA In Fossil Bones Discovered
2. Global Warming 55 Million Years Ago Too, Thanks to Fossil Fuels
3. Fewer teeth & Increased Ischemic Stroke risk
4. Sensitive to bright light? You may have sensitive teeth also
5. Ways to whiter teeth!
6. Less is more for preserving teeth and gums
7. Should we avoid energy drinks to protect our teeth?
8. Crooked teeth may be due to evolution and overcooked meals
9. Quit smoking to save your teeth
10. Sensitive teeth could become bad memories
11. And now candy that is good for your teeth!
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Fossil teeth and human development

(Date:7/30/2015)... ... 2015 , ... The Mesothelioma Applied Research Foundation (Meso Foundation) ... of 2015’. The bill was introduced in Congress yesterday by Representatives John Katko ... Joe Kennedy (D-MA), and Leonard Lance (R-NJ). The purpose of the bill is ...
(Date:7/30/2015)... ... ... On July 23rd Clay Today Online reported the state of ... prison system, which has amassed largely enough throughout the years. Florida is the third ... Obama’s recent reduction of non violent drug offender’s prison sentences, Florida is beginning to ...
(Date:7/30/2015)... ... July 30, 2015 , ... ... Acting Administrator Chuck Rosenberg’s announcement of the reinstitution of National Prescription Drug Take-Back ... 26, 2015 from 10:00 AM to 2:00 PM local time. On the 26th, ...
(Date:7/30/2015)... ... , ... Bird B Gone, the leader in bird control products for commercial, ... pest birds from the AC units and ventilation systems on hospital roofs. Bird droppings ... West Nile virus. When these droppings dry, the fine powder can be carried into ...
(Date:7/30/2015)... ... July 30, 2015 , ... Summer is the dry eye season, ... that a particularly long, dry and hot 2015 summer season and the dry eye ... advocate Sharon Kleyne will discuss the 2015 summer season and identify the primary dry ...
Breaking Medicine News(10 mins):Health News:Bill to Create Patient Registry for Deadly Cancer Introduced in Congress 2Health News:Florida Questions Its Spending on Punitive Incarceration in Light of Exorbitant Costs for Non Violent Offenders 2Health News:Florida Questions Its Spending on Punitive Incarceration in Light of Exorbitant Costs for Non Violent Offenders 3Health News:AAPCC Supports National Prescription Drug Take-Back Day 2Health News:AAPCC Supports National Prescription Drug Take-Back Day 3Health News:Bird B Gone’s New Bird Hazing System Keeps Disease-Carrying Bird Droppings Out of Hospitals 2Health News:Fresh Water Advocate Sharon Kleyne Warns to Be Extra Cautious About Dry Eye “Hot Spot” Cities In Hot Dry Summer of 2015 2Health News:Fresh Water Advocate Sharon Kleyne Warns to Be Extra Cautious About Dry Eye “Hot Spot” Cities In Hot Dry Summer of 2015 3
... LEVERKUSEN, Germany and WEST HAVEN, Conn., Nov. 5 ... Drugs and,Medical Devices (BfArM), the U.S. Food and ... Bayer announced today that it,has elected to temporarily ... results from the Canadian BART trial can,be compiled, ...
... NATICK, Mass., Nov. 5 Boston Scientific,Corporation (NYSE: ... for the sale of its Cardiac Surgery and Vascular ... healthcare equipment,and systems. The transaction will be for a ... within the next 45-90 days, subject to regulatory,approvals and ...
... Funds But Many Fund,Trustees Say They Won,t Do Business With ... ... 5 More than five,hundred attendees at the International Foundation ... in the,opening hours of the convention on Sunday carrying bags ...
... TARRYTOWN, N.Y., Nov. 5 EpiCept Corporation,(Nasdaq: ... financial,results for the three and nine months ended September ... a net loss attributable to common,stockholders of $7.7 million, ... million, or $0.22 per basic and diluted share, for ...
... simplified treatment choices led to better outcomes, research ... Simplify. Simplify. Simplify. , New research shows this ... blood pressure, which is the leading risk factor ... to the future" approach to treating hypertension helped ...
... better when the dark delight is consumed, study suggests , ... A Japanese study finds that flavonoid-rich dark chocolate can improve ... as coronary flow velocity reserve (CFVR), an indicator of the ... blood flow in response to medications. , The two-week trial ...
Cached Medicine News:Health News:Bayer Temporarily Suspends Global Trasylol(R) Marketing 2Health News:Bayer Temporarily Suspends Global Trasylol(R) Marketing 3Health News:Bayer Temporarily Suspends Global Trasylol(R) Marketing 4Health News:Boston Scientific Announces Sale of Cardiac Surgery and Vascular Surgery Businesses 2Health News:Boston Scientific Announces Sale of Cardiac Surgery and Vascular Surgery Businesses 3Health News:Boston Scientific Announces Sale of Cardiac Surgery and Vascular Surgery Businesses 4Health News:Hundreds of Benefit Fund Trustees Question Viability of Rite Aid Pharmacy Benefit Management Company 2Health News:Hundreds of Benefit Fund Trustees Question Viability of Rite Aid Pharmacy Benefit Management Company 3Health News:Hundreds of Benefit Fund Trustees Question Viability of Rite Aid Pharmacy Benefit Management Company 4Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 2Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 3Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 4Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 5Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 6Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 7Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 8Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 9Health News:EpiCept Corporation Reports Third Quarter 2007 Operating and Financial Results 10Health News:New Measures Improve Heart Care 2Health News:New Measures Improve Heart Care 3Health News:New Measures Improve Heart Care 4Health News:Chocolate Has Sweet Effect on Blood Flow 2
(Date:7/30/2015)... 2015 P&S Market ... market overview, trends, DRO analysis, market segmentation, ... developments, competitive scenario and top competitor profiles ... Market Development and Demand Forecast to 2020  ... Explore more about global biosensors ...
(Date:7/30/2015)... , July 30, 2015   Gaumard® ... update to UNI®, the world,s first operating system ... is now available exclusively to Gaumard users. UNI® ... recently launched Newborn Tory™ S2200, as well as ... monitoring of clinical measures such as EtCO 2 ...
(Date:7/30/2015)... 30, 2015   Sentrian , the Remote ... hospitalization, recently received confirmation from the Food & ... (RPI) solution meets the definition of a "medical ... "Enforcement Discretion." The designation identifies ... FDA regulatory requirements at this time" and clears ...
Breaking Medicine Technology:Global Biosensors Market (Size of $12,964 Million in 2014) to Witness 10% CAGR During 2015 - 2020 2Global Biosensors Market (Size of $12,964 Million in 2014) to Witness 10% CAGR During 2015 - 2020 3Global Biosensors Market (Size of $12,964 Million in 2014) to Witness 10% CAGR During 2015 - 2020 4Global Biosensors Market (Size of $12,964 Million in 2014) to Witness 10% CAGR During 2015 - 2020 5Gaumard's Latest UNI Operating System Update Adds Performance and New Functionality 2Gaumard's Latest UNI Operating System Update Adds Performance and New Functionality 3FDA Clears Way for Commercial Marketing of Sentrian Remote Patient Intelligence Solution 2FDA Clears Way for Commercial Marketing of Sentrian Remote Patient Intelligence Solution 3
... , New England Journal of Medicine Publishes First ... Kidney Disease Patients "Superior" in Treating Blocked Access ... A randomized multicenter study of 190 patients at 13 ... grafts over balloon angioplasty for maintaining function of dialysis access ...
... SIGNAL HILL, Calif. , Feb. 11 Integrated ... care, announced that former United States Air Force Surgeon General ... Board of Advisors. , As U.S. Air Force Surgeon General, ... Secretary of the Air Force, and provided direction to over ...
Cached Medicine Technology:Stent Grafts Top "Gold Standard" Balloon Angioplasty for Dialysis Patients 2Stent Grafts Top "Gold Standard" Balloon Angioplasty for Dialysis Patients 3Stent Grafts Top "Gold Standard" Balloon Angioplasty for Dialysis Patients 4Stent Grafts Top "Gold Standard" Balloon Angioplasty for Dialysis Patients 5Stent Grafts Top "Gold Standard" Balloon Angioplasty for Dialysis Patients 6Former Air Force Surgeon General Joins Integrated Medical Systems' Advisory Board 2Former Air Force Surgeon General Joins Integrated Medical Systems' Advisory Board 3
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
Medicine Products: