Navigation Links
Study finds significant skull differences between closely linked groups
Date:4/12/2012

In order to accurately identify skulls as male or female, forensic anthropologists need to have a good understanding of how the characteristics of male and female skulls differ between populations. A new study from North Carolina State University shows that these differences can be significant, even between populations that are geographically close to one another.

The researchers looked at the skulls of 27 women and 28 men who died in Lisbon, Portugal, between 1880 and 1975. They also evaluated the skulls of 40 women and 39 men who died between 1895 and 1903 in the rural area of Coimbra, just over 120 miles north of Lisbon.

The researchers found significant variation between female skulls from Lisbon and those from Coimbra. "The differences were in the shape of the skull, not the size," says Dr. Ann Ross, professor of anthropology at NC State and co-author of a paper describing the study. "This indicates that the variation is due to genetic differences, rather than differences of diet or nutrition." The researchers found little difference between the male skulls.

Specifically, the researchers found that the female skulls from Lisbon exhibited greater intraorbital distance than the skulls of Coimbra females. In other words, the women from Lisbon had broader noses and eyes that were spaced further apart.

This difference in craniofacial characteristics may stem from an influx of immigrants into Lisbon, which is a port city, Ross says. However, it may also be a result of preferential mate selection meaning Lisbon men were finding mates abroad, or were more attracted to women with those facial features.

"Finding this level of dimorphism between groups in such close proximity to each other highlights the importance of examining human variation if we hope to make informed assessments of skeletal remains," Ross says. "That's true whether you're working in a biohistorical context or engaged in forensic analysis with law enforcement."


'/>"/>
Contact: Matt Shipman
matt_shipman@ncsu.edu
919-515-6386
North Carolina State University
Source:Eurekalert  

Related medicine news :

1. Huntingtons Disease Linked to Reduced Cancer Risk in Study
2. Disrupted Sleep May Raise Risk for Obesity, Diabetes: Study
3. Some Folks Just Cant Help Being Nice, Study Suggests
4. Codeine After Surgery Could Endanger Certain Kids: Study
5. Common Blood Pressure Drug Safe for Heart Failure: Study
6. Young Americans Need to Cut Calorie Intake: Study
7. Study: Women not getting enough exercise; at risk of developing metabolic syndrome
8. Supporting LGB children may influence their long-term health, BU study finds
9. Climate Change Could Be Tough on Seniors Health: Study
10. Children Born to Obese Moms May Face Higher Autism Risk: Study
11. Cholesterol Levels Vary Widely by Country: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study finds significant skull differences between closely linked groups
(Date:8/18/2017)... York (PRWEB) , ... August ... ... LLC, d/b/a Quick International, LLC (“Quick”), a highly specialized asset-light logistics provider ... has entered into a definitive agreement to purchase Unitrans International Corporation, a ...
(Date:8/18/2017)... York, NY (PRWEB) , ... August 18, 2017 ... ... launch of this summer’s edition of “Vision & Hearing,” advocating for active, healthy ... campaign focuses on resources available for individuals with hearing impairments and shares the ...
(Date:8/18/2017)... ... August 18, 2017 , ... As an industry leader, Eppendorf ... they will present the line of epMotion automated liquid handling system. This automated ... automate everyday pipetting tasks. , Ideal for scientists and lab technicians with no ...
(Date:8/18/2017)... ... August 18, 2017 , ... Hernandez Insurance Agencies, a ... throughout the greater DC region, is inaugurating a “New Leash On Life” charity ... and training them to be companions for veterans in need. , The Semper ...
(Date:8/18/2017)... ... August 18, 2017 , ... Moore Insurance, a ... in east Texas, is launching a regional charity effort to provide publicity assistance ... the Pediatric Brain Tumor Foundation (PBTF) has raised nearly $30 million in donations ...
Breaking Medicine News(10 mins):
(Date:8/7/2017)... , Aug. 7, 2017  Endo International plc ... reached agreements to resolve virtually all known U.S. mesh ... discussions to resolve the known remaining U.S. claims at ... payments beginning in the fourth quarter of 2017 and ... of its second quarter 2017 results, the Company intends ...
(Date:8/2/2017)... BENTON, Ky. , Aug. 2, 2017   Marshall County Hospital in ... (ES) team to proactively reduce the risk of hospital-acquired infections (HAIs). The new addition, ... uses UVC light energy to kill deadly pathogens such as C. diff , MRSA, ... Tru-D SmartUVC ... Tru-D in action in a patient room ...
(Date:7/31/2017)... Tenn. , July 31, 2017 Three Tru-D SmartUVC ... Yongsan, South Korea . Tru-D, short for "Total Room ... and operating rooms after an environmental services (ES) professional cleans the area ... ... "Although the ...
Breaking Medicine Technology: