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:9/30/2014)... 2014  Spectra Automation, a trusted supplier ... and power generation industries, announced today the ... an easy-to-use and cost-effective data collection, analysis ... laboratories. Most upstream process ... systems. Accessing and consolidating data from these ...
(Date:9/29/2014)... Clostridium ramosum , coupled with a high-fat diet, may ... week in mBio , the online open-access journal of ... from the German Institute of Human Nutrition Potsdam-Rehbruecke in Nuthetal ... ramosum gained weight when fed a high-fat diet. Mice ... obese even when consuming a high-fat diet, and mice that ...
(Date:9/29/2014)... "human activities in this area of the world have contributed ... grown for use as a cooking oil and biofuel, while ... the most widely produced edible oil in the world, and ... soybean oil. , The environmental effects of such growth have ... crop, and the preferred method is fire. The clearing often ...
Breaking Biology News(10 mins):Spectra Automation Introduces RECONN Bioprocess Manager 2Gut bacteria promote obesity in mice 2
... food meal is never good for you, but washing that ... a new University of Guelph study. Researcher Marie-Soleil Beaudoin ... levels spike after eating a high-fat meal, but that the ... coffee jumping to levels similar to those of people ...
... leaves influence the sunlight reaching inner canopy leaves by changing ... physiology of leaves within the tree canopy is not constant, ... crown. This phenomenon is expected to have important consequences for ... A new study describes how the leaves in the outer ...
... ARBOR, Mich.Getting older doesn,t mean giving up muscle strength. ... loss that comes with age, but the Golden Years can be ... Michigan Health System. "Resistance exercise is a great ... people can function more readily in daily life," says Mark Peterson, ...
Cached Biology News:Got a craving for fast food? Skip the coffee, study says 2Older and stronger: Progressive resistance training can build muscle, increase strength as we age 2Older and stronger: Progressive resistance training can build muscle, increase strength as we age 3Older and stronger: Progressive resistance training can build muscle, increase strength as we age 4
(Date:10/1/2014)... Slone Partners , a national ... and Laboratory Testing industries, reported a 120% increase in ... level and above from July 2013 to July 2014. ... of rapid breakthroughs in diagnostics, reimbursement has failed to ... been forced to fold, consolidate, or carry on without ...
(Date:10/1/2014)... Industry leaders from retail ... around the theme, ,Commercial Opportunities in the Era of ... Elsevier , a world-leading provider of scientific, ... a gathering of some of the industry,s most prominent ... today and in the future. The Elsevier ...
(Date:9/30/2014)... Using a bio-mimicking analog of one of nature,s ... international research team led by Alejandro Briseno of ... major step in developing long-sought polymer architecture to ... use in electronic devices. , Briseno, with ... others at Stanford University and Dresden University of ...
(Date:9/30/2014)... , Sept. 30, 2014 Nematicide ... kill nematodes. Nematodes are microscopic parasitic roundworms, found ... and inside other plants and animals. Nematicides have ... or other properties promoting migration through the soil. ... than 1,000 plant-parasitic nematodes. With more than 10,000 ...
Breaking Biology Technology:Slone Partners Meets Growing Demand as Industry Focuses on Reimbursement & Regulation 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... Tetrahedral dice, which have four triangular sides, pack ... to research performed by a collaboration of New York ... result of a series of experiments that involved pouring ... dice until the containers were completely filled. After adding ...
... 3 /PRNewswire-FirstCall/ - Angiotech Pharmaceuticals, Inc. ( ANPI, TSX: ANP), a specialty ... exclusive distribution agreement with B. Braun for its proprietary Quill(TM) SRS product line ... The term of the distribution agreement will be for five years. , ... According to The Royal College of Surgeons ...
... , LAWRENCEVILLE, N.J. , May 3 ... (n = 520) multi-center patient registry study of its Lacrisert® ... index (OSDI) in patients with moderate-to-severe dry eye after one ... poster this week during the 2010 Annual Meeting of the ...
Cached Biology Technology:Densest dice packing and computing with molecules 2Angiotech announces exclusive distribution agreement with B. Braun for Angiotech's proprietary Quill(TM) SRS product line 2Angiotech announces exclusive distribution agreement with B. Braun for Angiotech's proprietary Quill(TM) SRS product line 3Angiotech announces exclusive distribution agreement with B. Braun for Angiotech's proprietary Quill(TM) SRS product line 4Angiotech announces exclusive distribution agreement with B. Braun for Angiotech's proprietary Quill(TM) SRS product line 5Study of Lacrisert(R) Dry Eye Insert 2Study of Lacrisert(R) Dry Eye Insert 3Study of Lacrisert(R) Dry Eye Insert 4Study of Lacrisert(R) Dry Eye Insert 5
... scale kinase profiling, quantitative measurement of ... research built on the flexible and ... These microarrays are available as part ... - Peptide Microarray Service. ...
... acid synthetic peptide whose sequences are derived from mouse resistin protein. ... S(21) - S - M - P - L - C ... I - D - K - K - I - K ... be used for neutralization and control experiments with the polyclonal antibody ...
... peptidomimetics built on the flexible and ... These microarrays are available as part ... Service. Custom Probe Content ... specified. Thousands of customer specified peptide ...
... These extended-length microarrays are custom designed to ... configurations are available: 8,455 features per array ... 22,575 features per array (1 array/slide). ... probe length - This extended length ...
Biology Products: