Navigation Links
Long bone shape: A family affair
Date:10/4/2011

This release is available in German.

Although humans and chimpanzees move quite differently, muscle attachment sites at their thighbones are similar. This result, which has recently been published by anthropologists of Zurich University in the scientific journal Anatomical Record, has major consequences for the interpretation of fossil hominid finds.

PhD student Naoki Morimoto, member of the Computer-Assisted Paleoanthropology group of Ch. Zollikofer and M. Ponce de Len, and junior author of the study, was surprised by his own findings. Although humans are bipeds, and chimps are quadrupeds, muscle attachment sites at their thighbones are quite similar. Attachment sites differ substantially, however, between chimpanzees and gorillas, although these great apes species move similarly. Interestingly, Morimoto's results are in line with insights from genetics: humans and chimps are evolutionary sister species, while gorillas are more distant relatives, like cousins. Morimoto explains the seeming paradox of his results: this is not form follows function, but form follows family.

Functional inferences: a cautionary tale

The new findings have far-reaching implications for the interpretation of fossil hominin remains. Fossil thighbone shafts are often well preserved, but it now appears that inferences about locomotor behavior must be drawn with caution, while inferences about the fossil's evolutionary relationships might be more straightforward. Anthropologist Ch. Zollikofer explains: the transition from great-ape-like quadrupedal to human-like bipedal locomotion is accompanied by several changes in the hip and thighbones, but currently we cannot infer functional change from structural change with any certainty. And he asks the next big question of paleoanthropology: Why did the last common ancestor of humans and chimps, who m
'/>"/>

Contact: Naoki Morimoto
morimoto@aim.uzh.ch
41-446-355-441
University of Zurich
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Queens University Belfast researchers trace octopuses family tree
2. Children distressed by family fighting have higher stress hormones
3. Planetary "first family" discovered by astronomers using Gemini and Keck Observatories
4. Planetary first family discovered by astronomers using Gemini and Keck Observatories
5. Making the ultimate family sacrifice
6. Microscopic morphology adds to the scorpion family tree
7. Mayo Clinic researchers suspect a novel gene is causing restless legs syndrome in a large family
8. Regular family meals result in better eating habits for adolescents
9. Early family ties: No sponge in the human family tree
10. Rotator cuff tears: Are they all in the family?
11. Late motherhood boosts family lifespan
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Long bone shape: A family affair
(Date:11/3/2014)... low birth weight and preterm birth are linked to ... Findings published in the American College of Rheumatology (ACR) ... low birth weight and pre-term babies were not at ... adults. , According to the ACR, 27 million ... clinical OA. Symptoms of OA range from mild to ...
(Date:11/2/2014)... ORLEANS, LA (2 November 2014)—In support of a bold ... Bill & Melinda Gates Foundation today announced an award ... Malaria Vaccine Initiative (MVI) in building new vaccines that ... help realize the "accelerating to zero" agenda. Such vaccines ... what could be called an "immunological bed net." ...
(Date:11/2/2014)... into a bar and bump into a biologist . . ... some late-night nerd sketch, researchers have taken this premise and ... namely, finding meaning in the rising oceans of genomic data. ... mutations that genome-wide studies are publishing at a dizzying rate. ... the signal from the noise (and there is no shortage ...
Breaking Biology News(10 mins):Preterm, low birth-weight babies may need new hips in adulthood 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 3New malaria vaccines to prevent infection and block transmission get a shot in the arm 4Mutant models 2Mutant models 3Mutant models 4
... provide statin drugs free of charge so that customers can ... Imperial College London suggest in a new study published this ... in the blood. A wealth of trial data has proven ... attack risk. In a paper published in the Sunday ...
... Mount Sinai School of Medicine, New York, has been ... receive a 2010 ICAAC Young Investigator Award. Sponsored ... an early career scientist for research excellence in microbiology ... postdoctoral training in Molecular Biology at Harvard University in ...
... 250 scientists, engineers, government advisers and groups concerned ... from August 15-20, 2010 to consider the impact ... University of Maryland is co-sponsoring the conference, The ... ), which is co-organized by University of Maryland ...
Cached Biology News:Free statins with fast food could neutralize heart risk, scientists say 2University of Maryland co-sponsors International Conference on the Effects of Noise on Aquatic Life 2University of Maryland co-sponsors International Conference on the Effects of Noise on Aquatic Life 3
(Date:11/27/2014)... Nov. 27, 2014 Research and ... "Global Palmitic Acid Industry Report 2014" report to ... The Global Palmitic Acid Industry Report 2014 ... state of the global palmitic acid industry. ... including definitions, classifications, applications and industry chain structure. The ...
(Date:11/27/2014)... November 26, 2014 Biomedical devices that ... systems to enable 3D manufacture at the micro-nanoscale, and ... are among finalists in nine categories for the ... are sponsored by SPIE, the international society for ... , Winners will be announced by industry leaders on ...
(Date:11/26/2014)... November 26, 2014 The North ... segments the market for detailed analysis of the ... market to reach $616.3 million by 2018, growing ... 2018. , Browse through the TOC of the ... get an idea of the in-depth analysis and ...
(Date:11/26/2014)... , Nov. 26, 2014 The ... results from a survey of European physicians at ... on Innovation and Biological Therapies" at the Spanish ... event, hosted by EuropaBio and the Spanish Bioindustry ... of Health, physicians from Spanish oncology and rheumatology ...
Breaking Biology Technology:Global Palmitic Acid Industry Report 2014 2Finalists Named for 2015 Prism Awards for Photonics Innovation 2Finalists Named for 2015 Prism Awards for Photonics Innovation 3Finalists Named for 2015 Prism Awards for Photonics Innovation 4Finalists Named for 2015 Prism Awards for Photonics Innovation 5The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 2The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 3ASBM Presents European Physicians Survey at Spanish Ministry of Health 2
... hit universities and colleges across the country, including ... copyright infringement of both movies and music over ... several cease-and-desist notices to the Universirty of Wisconsin- ... were hosting movie downloads with content that belonged ...
... the information age similar to what the business world ... productivity of our staff, reduce costs, and improve our ... considerable engineering effort that requires hospital officials to look ... can embrace the changes that will improve healthcare. , ...
... Wisconsin has been a leader both in cutting-edge health ... nations leading research universities in UW-Madison, and leading-edge medical ... poised to lead again as the two fields merge ... engineering have long contributed to health care by providing ...
Cached Biology Technology:File Swapping: Download at your own Risk 2File Swapping: Download at your own Risk 3Im Still Waiting for the Information Age in Healthcare 2Im Still Waiting for the Information Age in Healthcare 3The Role of Engineering in Health Science and Technology 2The Role of Engineering in Health Science and Technology 3
... in-house demand is causing shortages in your ... This can cause unwanted distractions, problems and ... royalties for your hard work and endeavour! ... build it up,and market it internationally. We ...
Topoisomerase I...
...
... virus is a type I eukaryotic topoisomerase ... turns (also called right- and left-handed supercoils) ... the reaction is a covalently closed, circular ... turns. DNA Topoisomerase I does not absolutely ...
Biology Products: