Navigation Links
Human skull study causes evolutionary headache
Date:12/20/2011

Scientists studying a unique collection of human skulls have shown that changes to the skull shape thought to have occurred independently through separate evolutionary events may have actually precipitated each other.

Researchers at the Universities of Manchester and Barcelona examined 390 skulls from the Austrian town of Hallstatt and found evidence that the human skull is highly integrated, meaning variation in one part of the skull is linked to changes throughout the skull.

The Austrian skulls are part of a famous collection kept in the Hallstatt Catholic Church ossuary; local tradition dictates that the remains of the town's dead are buried but later exhumed to make space for future burials. The skulls are also decorated with paintings and, crucially, bear the name of the deceased. The Barcelona team made measurements of the skulls and collected genealogical data from the church's records of births, marriages and deaths, allowing them to investigate the inheritance of skull shape.

The team tested whether certain parts of the skull the face, the cranial base and the skull vault or brain case changed independently, as anthropologists have always believed, or were in some way linked. The scientists simulated the shift of the foramen magnum (where the spinal cord enters the skull) associated with upright walking; the retraction of the face, thought to be linked to language development and perhaps chewing; and the expansion and rounding of the top of the skull, associated with brain expansion. They found that, rather than being separate evolutionary events, changes in one part of the brain would facilitate and even drive changes in the other parts.

"We found that genetic variation in the skull is highly integrated, so if selection were to favour a shape change in a particular part of the skull, there would be a response involving changes throughout the skull," said Dr Chris Klingenberg, in Manchester's Faculty of Life Scienc
'/>"/>

Contact: Aeron Haworth
aeron.haworth@manchester.ac.uk
44-161-275-8383
University of Manchester
Source:Eurekalert

Page: 1 2

Related biology news :

1. Swiss Institute of Bioinformatics celebrates 10th birthday by presenting major gifts to human health
2. Scientists identify novel inhibitor of human microRNA
3. During exercise, the human brain shifts into high gear on alternative energy
4. Complete Genomics launches, becomes worlds first large-scale human genome sequencing company
5. Research shows Brazilian acai berry antioxidants absorbed by human body
6. Study: Bird diversity lessens human exposure to West Nile Virus
7. Human Microbiome Project awards funds for technology development, data analysis and ethical research
8. TheVisualMD.com launches new animated 3-D views of human body in action
9. Gene with probable role in human susceptibility to pulmonary tuberculosis identified
10. The American Society of Human Genetics hosts 58th Annual Meeting in Philadelphia
11. Genetic based human diseases are an ancient evolutionary legacy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... intake, health and quality of life of older adults ... the University of Waterloo receiving close to $1.5 million ... (CIHR). , Professor Heather Keller, of the Faculty ... research chair in nutrition and aging, will receive $979,000 ... in long-term care homes are poorly nourished. The project ...
(Date:8/21/2014)... a finding that has implications for life in other ... the solar system, LSU Associate Professor of Biological Sciences ... Science Foundation, or NSF, this week published a paper ... that lies 800 meters (2600 feet) beneath the surface ... ecosystems.", Given that more than 400 subglacial lakes and ...
(Date:8/21/2014)... Ever heard of the water window? It consists of ... are not absorbed by the water in biological tissues. ... develop coherent radiations within the water window. These could ... a high-contrast image of the biological samples or to ... study identifies the physical mechanism needed to efficiently generate ...
Breaking Biology News(10 mins):Grants will fund landmark aging research at Waterloo 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 2800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 3800 meters beneath Antarctic ice sheet, subglacial lake holds viable microbial ecosystems 4Water window imaging opportunity 2
... available in German . Flowers need water ... to gather energy from earth and water. Members of Professor Dr. ... groundbreaking discovery that one plant has another way of doing this. ... green alga Chlamydomonas reinhardtii , not only engages in photosynthesis, ...
... WINSTON-SALEM, N.C. Nov. 20, 2012 If you are ... then you have probably tried everything from warm milk ... with varying degrees of success and side effects. But what ... through ,balancing, brain activity? Researchers at Wake Forest ...
... , Sequencing historical DNA to tackle wheat,s worst ... extremes, Leaving a bad taste in aphids, mouths, Reducing ... Exploiting wild wheat to produce better Indian varieties , ... a unique 16M initiative that will harness bioscience to ...
Cached Biology News:Algae can draw energy from other plants 2Music to the ears for a good night's sleep? 2Music to the ears for a good night's sleep? 3Major international push to maximize bioscience research to help world's poorest farmers 2Major international push to maximize bioscience research to help world's poorest farmers 3Major international push to maximize bioscience research to help world's poorest farmers 4
(Date:8/20/2014)... Aug. 20, 2014  PAREXEL International Corporation (NASDAQ: ... presenting at the Baird Healthcare Conference in New York.  ... Financial Officer, will be making a presentation on PAREXEL ... Wednesday, Sept. 3, 2014. A live webcast ... section of PAREXEL,s website at www.PAREXEL.com in ...
(Date:8/20/2014)... August 20, 2014 Not long ago, ... studies should be performed late in the development cycle ... But current regulatory trends suggest that, like many things ... rise. In recent years, multiple drug sponsors have been ... address specific questions during phase I/II. It’s not only ...
(Date:8/20/2014)... improve the health of your heart, researchers have discovered. ... a standard TENS machine like those designed to relieve ... the small raised flap at the front of the ... The stimulation changed the influence of the nervous system ... can drive failing hearts too hard. , Professor Jim ...
(Date:8/20/2014)... GraphDB™ 6.0 from ... the enterprise replication cluster, faster loading speeds, higher ... Elasticsearch. This release happens to coincide with a ... GraphDB™ was formerly known as OWLIM. ... enterprise resilient RDF triplestore will also benefit from ...
Breaking Biology Technology:PAREXEL International To Present At Baird Healthcare Conference 2Are Extractable and Leachables going Phase-Appropriate? New Webinar Hosted by Xtalks 2'Tickling' your ear could be good for your heart 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4
... 26, 2011 Reportlinker.com announces that a ... its catalogue: Future Directions ... http://www.reportlinker.com/p0511976/Future-Directions-in-Regenerative-Medicine.html?utm_source=prnewswire&utm_medium=pr&utm_campaign=Biological_Therapy Big Pharma has ... 2008, Pfizer and Novartis in 2009, and ...
... SAN DIEGO, May 26, 2011 Biomatrica, Inc., the ... announced the appointment of Dr. James A. Robb to ... is a well respected pathologist and scientist with over ... virology, and genetics. He currently serves as a Governor ...
... class of decorative, flower-like defects in the nanomaterial graphene ... unique electrical and mechanical properties, according to researchers at ... Georgia Tech. In a new paper,* the team for ... that could occur naturally or be induced to occur ...
Cached Biology Technology:Reportlinker Adds Future Directions in Regenerative Medicine 2Reportlinker Adds Future Directions in Regenerative Medicine 3Reportlinker Adds Future Directions in Regenerative Medicine 4Reportlinker Adds Future Directions in Regenerative Medicine 5Reportlinker Adds Future Directions in Regenerative Medicine 6Biomatrica Announces the Appointment of Dr. James A. Robb as a Member of the Scientific Advisory Board 2Biomatrica Announces the Appointment of Dr. James A. Robb as a Member of the Scientific Advisory Board 3Defect in graphene may present bouquet of possibilities 2
Screening test for the detection of Salmonella sp. by means of DNA amplification, subsequent molecular hybridization and detection on a microtitre plate....
... 10X PCR Enhancer (with betaine) substantially ... sensitivity and specificity for amplification of ... Enhancer in PCR eliminates the base-pair ... enzyme?s thermal stability, suppresses pauses of ...
... be used with all 96-well ... stacking of covered plates ... with automated systems ... are available for use with ...
Designed for use with all 96-well SPRI reagent kits. Used with round bottom 96-well microplates, and 96-well thermal cycling plates....
Biology Products: