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:8/6/2015)... JOSE, Calif. , Aug. 6, 2015 /PRNewswire/ ... leading developer of human interface solutions, today announced ... TouchPad technologies on Windows 10. Microsoft leveraged Synaptics, ... to the operating system. Through ... drivers are fully certified with Microsoft,s Precision TouchPad ...
(Date:8/5/2015)... , August 5, 2015 Transparency ... "Facial Recognition Market - Global Industry Analysis, Size, Share, ... market for facial recognition is forecast to reach US$ ... increased demand for surveillance systems by civil and government ... of crimes and terrorist activities across the globe that ...
(Date:8/4/2015)... , Aug. 04, 2015 ... http://www.researchandmarkets.com/research/nvh7k2/digital_forensics ) has announced the addition of ... (Hardware, Software, and Service), Sub-Segment (Computer Forensics, ... Forensics), Tool Types, Service, Vertical and Region ... to their offering. By Component ...
Breaking Biology News(10 mins):Synaptics Chosen for Human Interface Co-Development on Windows 10 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 3Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 4Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 5Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 6Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2
... PITTSBURGH-Carnegie Mellon University,s Jeanne M. VanBriesen and Kelvin ... Colcom Foundation to study water quality in the Monongahela ... on the presence and effect of bromide associated with ... mine drainage, according to VanBriesen, a professor of civil ...
... at their peak bloom and climbing plants, like clematis, morning ... these plants beautiful, but their ability to climb walls and ... taken millions of years to accomplish. A recent article ... July issue of the American Journal of Botany ...
... 53 million to 47 million years ago strongly influenced plants ... researchers from three research museums report in a paper published ... Academy of Sciences . "Today, the middle of ... deer are all you see," said lead author Michael Woodburne, ...
Cached Biology News:Carnegie Mellon's Jean VanBriesen leads research team on Monongahela River 2Climbing to new heights in the forest canopy 2Climate-caused biodiversity booms and busts in ancient plants and mammals 2
(Date:9/2/2015)... , Sept. 2, 2015 Veracyte, Inc. ... H. Anderson , president and chief executive officer, will ... Wednesday, September 16, 2015 at 10:30 a.m. ET in ... The live audio webcast and subsequent replay may ... webcast will be available shortly after conclusion of the ...
(Date:9/2/2015)... September 2, 2015 Biovista ... Wettbewerbs BeHEARD von 2015 bekanntgeben zu können. Hierbei ... Genomics Institute. Biovista unterstützt mit seiner ... die Behandlung anderer Krankheiten als denen, für die ... und sein Team bei der Wylder Nation ...
(Date:9/2/2015)... ... September 02, 2015 , ... Temarry ... their entire waste to energy process and continue to contribute to the sustainability ... , Temarry’s Waste to Energy process has been operating at their Mexico facility, ...
(Date:9/1/2015)... 2015 Swecure, ein ... und Entwicklung neuartiger Therapien für Störungen des ... Reizdarm konzentriert, erhält vom US Patent and ... Medikament patentiert wird. Das Medikament basiert auf ... verhindert und Entzündungen vorbeugt.   Das ...
Breaking Biology Technology:Veracyte to Present at Morgan Stanley Global Healthcare Conference 2Biovista sponsert die Forschung von Wylder Nation Foundation zum Thema Mangel an saurer Sphingomyelinase 2Temarry Recycling’s New $100,000 Waste to Energy Renovation 2Das Patent von Swecure zur Verhinderung von Allergien bei Kindern wird in den USA zugelassen 2
... what a lot of Web developers realized some time ago: ... should be supported as one. , , In announcements made ... the current and future components of the Flash development platform ... center, of course, is the Flash player itself, which is ...
... Economics and the Wisconsin Technology Council have released a ... economy and the difficulties that still need to be ... workforce. , ,Wisconsin Technology Council President Tom Still ... and Massachusetts have lost 10 to 15 percent of ...
... you've got the budget to implement a Web project, there is ... how do you determine the best choice? , ,Selecting the right ... your company's Web site can be a challenge. You want to ... care of your technology and marketing needs in the process, and ...
Cached Biology Technology:Flashing into the future 2Flashing into the future 3Report: Wisconsin still lags in college degrees held by workforce, leads elsewhere 2Report: Wisconsin still lags in college degrees held by workforce, leads elsewhere 3The best and the rest: rating Web developers 2The best and the rest: rating Web developers 3The best and the rest: rating Web developers 4