Navigation Links
Early humans had 'jaws of steel'
Date:2/3/2009

g it to a similar model built for a species of monkey called macaques," Spencer explained.

The result a rainbow colored virtual skull that illustrates forces absorbed by the cranial structure in simulated bite scenarios and how their unusual facial features were ideally suited to support the heavy loads of cracking hard nuts.

"It was like watching 'Mrs. Ples' come to life," Spencer said.

"This reinforces the body of research indicating that facial specializations in species of early humans are adaptations due to a specialized diet," said Spencer. "The enlargement of the premolars, the heavy tooth enamel and the evidence now that they were loading forcefully on the molars suggest the size of the objects were larger than the previously hypothesized small seeds and nuts.

"These fall-back foods hard nuts and seeds were important survival strategies during a period of changing climates and food scarcity," he added. "Our research shows that early, pre-stone tool human ancestors solved problems with their jaws that modern humans would have solved with tools."


'/>"/>

Contact: Jodi Guyot
jodi.guyot@asu.edu
480-727-8739
Arizona State University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. 60 second test could help early diagnosis of common brain diseases
2. Restless legs syndrome affects nearly 2 percent of US/UK children
3. Bleeding, not inflammation, is major cause of early lung infection death
4. Pig study sheds new light on the colonisation of Europe by early farmers
5. Color contrast is seen by the brain early doors
6. Extra gene copies were enough to make early humans mouths water
7. Was ability to run early mans Achilles heel?
8. New technique can be breakthrough for early cancer diagnosis
9. Yam bean a nearly forgotten crop
10. NIH awards nearly $23M to University of Chicago for translational research
11. Yam bean a nearly forgotten crop
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Early humans had 'jaws of steel'
(Date:4/17/2014)... Our eyes not ... with a continuous stream of information about our own movements. ... a car the world glides by us and leaves ... our brain calculates self-motion from this "optic flow". This way, ... during our own movements. Together with biologists from the University ...
(Date:4/17/2014)... hydrogen sulfide in order to properly multiply and form ... Center for Craniofacial Molecular Biology at the Herman Ostrow ... principal investigator on the project, said the presence of ... of calcium ions. The essential ions activate a chain ... creation of new bone tissue, and keeps the breakdown ...
(Date:4/17/2014)... Rajendra Singh Thursday as a "Champion of Change" ... deployment in the residential, commercial and industrial sectors. ... Electrical and Computer Engineering and director of Clemson,s ... hero leading the charge across the country to ... and driving policy changes at the local level ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... not the most hospitable place on Earth, but at least ... The bacteria -- Chryseobacterium and Paenisporosarcina ... the laboratory that was designed to simulate as closely as ... of Arctic and Antarctic glaciers, said Corien Bakermans, assistant professor ...
... in which a key cell of the immune system prepares ... processes that take place within these cells and could lead ... cancer. The research focused on the neutrophil, the most ... the immune system, its job is to seek out and ...
... canines were on a mission to sniff out trouble ... of an Office of Naval Research (ONR)-hosted "Top Dog ... by helping them move through the battle space," said ... Program, part of ONR,s Expeditionary Warfare and Combating Terrorism ...
Cached Biology News:Hardy bacteria help make case for life in the extreme 2UCSF team uncovers how immune cells move against invaders 2Marine's best friend shows explosive-detecting capabilities 2
(Date:1/15/2014)... England , January 15, 2014 A ... win races on the Formula 1 track could help to ... McLaren Applied Technologies (MAT), Stowhealth (a GP surgery based in ... by healthcare provider Simplyhealth. Telemetry technology, which is ...
(Date:1/15/2014)... NY (PRWEB) January 15, 2014 The Microcompetition ... a major disease. One of these latent viruses is the ... rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic inflammatory ... theory, a study found that RA patients have high concentrations ...
(Date:1/15/2014)... CA (PRWEB) January 15, 2014 ... research solutions, today announced that Lupin Limited, one of ... Freeslate’s CM Protégé PharmD System for high ... Mumbai, India, is focused on a wide range of ...
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: ... 1360 Almshouse Road, Warrington, Pa. , Details: The ... to finding a cure for hepatitis B and improving the ... annual Crystal Ball on Friday, April 11 at Warrington Country ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... tickles your feet or the red Bordeaux smacking on your ... special chemical markers. These markers, called isotopes, can tell scientists ... they traveled, and what happened to them along the way. ... Stanford chemists have developed a new method to make isotopic ...
... PROMOTIONAL SYSTEMS, INC. (Pink Sheets: VGPR) today announced it has ... to assist the Company in building a biomass production facility ... its intention to build a biomass plant in Georgia to ... State,s Bioenergy Corridor. Georgia ranks third in the nation ...
... Inc. (Nasdaq: NVAX ) announced today its ... vaccine technology to ROVI Pharmaceuticals (Madrid: ROVI) of Spain. ... a comprehensive influenza vaccine solution for the Spanish government ... by the Spanish Ministry of Health and other government ...
Cached Biology Technology:Stanford researchers find a quicker, cheaper way to sort isotopes 2Stanford researchers find a quicker, cheaper way to sort isotopes 3Vega Picks Tennessee Firm to Assist with Construction of Biomass Plant in Georgia 2Spanish Government Selects Novavax's VLP Technology for Comprehensive Flu Vaccine Solution in Spain 2Spanish Government Selects Novavax's VLP Technology for Comprehensive Flu Vaccine Solution in Spain 3Spanish Government Selects Novavax's VLP Technology for Comprehensive Flu Vaccine Solution in Spain 4Spanish Government Selects Novavax's VLP Technology for Comprehensive Flu Vaccine Solution in Spain 5
CircuLex Anti-Human S100P Polyclonal Antibody Research Focus: proliferation Storage: -20C Shipping Temperature: 4C...
...
Raised to arginine vasopressin coupled to bovine thyroglobulin with carbodiimide ....
Anti-LC3 Polyclonal Antibody Research Focus: cell surface antigens Storage: -20C Shipping Temperature: +4C...
Biology Products: