Navigation Links
Ancient lemur's little finger poses mystery
Date:3/19/2008

Analysis of the first hand bones belonging to an ancient lemur has revealed a mysterious joint structure that has scientists puzzled.

Pierre Lemelin, an assistant professor of anatomy at the University of Alberta in Edmonton, Canada, and a team of fellow American researchers have analyzed the first hand bones ever found of Hadropithecus stenognathus, a lemur that lived 2,000 years ago. The bones were discovered in 2003 in a cave in southeastern Madagascar, an island nation off the coast of Africa in the Indian Ocean. Hadropithecus is related to the modern-day sifaka, a type of lemur with acrobatic leaping skills. A lemur is a monkey-like animal with a long tail and large eyes.

An examination of the five tiny hand bones by Lemelin and the rest of the research team revealed a never-before-seen hand joint configuration on the side of the little finger. The same joint configuration is straight in all other primates, including Archaeolemur, a close extinct relative of Hadropithecus.

Our analysis showed a mosaic of lemurid-like, monkey-like and very unique morphological traits, Lemelin said. Because the joint was present on both hands, its likely not an anomaly, but because there are no other Hadropithecus hand bones for comparison, we dont know for certain, Lemelin said. It is a mystery, and further investigation is needed to explain the difference in this species.

Lemelin and his colleagues from George Washington University, the Medical College of Georgia, and the universities of Stony Brook and Massachusetts at Amherst, also discovered that, unlike its close living relatives, Hadropithecus lacked anatomical traits linked with wrist mobility and strong finger flexion that characterize primate species that climb or cling to trees.

The hand bones also showed that Hadropithecus had very short thumbs and was a quadrupedal species, walking on all fours, much like many primates, such as baboons, do today. The discovery
'/>"/>

Contact: Bev Betkowski
beverly.betkowski@ualberta.ca
780-492-3808
University of Alberta
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Scientists retrace evolution with first atomic structure of an ancient protein
2. CU-Boulder team discovers first ancient manioc fields in Americas
3. Ancient organisms discovered in Canadian gold mine
4. Amber specimen captures ancient chemical battle
5. Ancient whale fall from Californias Año Nuevo Island one of youngest, most complete known
6. Ancient whale fall from Californias Ao Nuevo Island one of youngest, most complete known
7. 454 Sequencing: Science paper describes a novel, highly efficient method of sequencing ancient DNA
8. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
9. Ancient amphibians left full-body imprints
10. Scientists melt million-year-old ice in search of ancient microbes
11. Ancient fish bones reveal impacts of global warming beneath the sea
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ancient lemur's little finger poses mystery
(Date:4/27/2015)... , Apr. 27, 2015 Profile Solutions, Inc. ... and security systems is pleased to announce that Dr ... a consultant and member of its scientific advisory board. ... known as a thought leader in technology-enhanced learning models. ... Group, and has published studies and books focused on ...
(Date:4/20/2015)... 2015 The announcement comes as ... Records Management (GRM), Ireland,s foremost records ... Having built up an impressive track record of clients within ... within the records management sector in Dubai ... GCC staffbase and employ a further eight staff members at ...
(Date:4/14/2015)... Conn. , April 14, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... been nominated for the 2015 New York Design Awards ... The Design100, New York City Design Awards are part ... based on over 2,500 ratings from the marketplace, industry ...
Breaking Biology News(10 mins):Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3
... "In the DNA of living beings, we have identified ... a certain species, differ among the various species," explained Prof. ... Plants at the University of Bonn. "Based on these markers, ... result of this analysis resembles a barcode at the supermarket; ...
... ALERT , "Basic science and clinical medicine move at ... at improving strategies to manage cancer patients. We need to ... implement them in the clinic." Sherene Loi and ... focus on four major areas: , Molecular pathology, ...
... Heart Foundation (BHF), has tested a new imaging method which ... having a heart attack (1). Scientists from the ... collaboration with the University of Cambridge are the first to ... image the disease processes directly in the coronary arteries that ...
Cached Biology News:Genetic markers for tracking species 2Fourth IMPAKT Breast Cancer Conference 2Fourth IMPAKT Breast Cancer Conference 3Scientists develop new technique that could improve heart attack prediction 2
(Date:5/21/2015)... , May 21, 2015 Imagine ... feelings - and those of others. Being able to ... Analyze and read people to anticipate their thoughts and ... deepest emotions and feelings to create unique abstract paintings ... responsive games. Get inside a first-person-shooter as it creates ...
(Date:5/21/2015)... 21, 2015  CytRx Corporation (NASDAQ: CYTR ... in oncology, today announced positive updated results from ... for the treatment of unresectable glioblastoma multiforme (GBM), ... multisite trial is designed to investigate the preliminary ... tumors have progressed following prior treatment with surgery, ...
(Date:5/21/2015)... 2015 /PRNewswire/ - RepliCel Life Sciences Inc. (TSX.V: ... company focused on the development of autologous cell ... the International Society for Cellular Therapy (ISCT) on ... currently in a Phase 1/2 clinical trial.  The ... from 5:30 PM to 7:00 PM local time, ...
(Date:5/20/2015)... SAN FRANCISCO, Calif. , May 20, 2015 ... VCYT ) today presented preliminary data demonstrating the ... distinguish idiopathic pulmonary fibrosis (IPF) from other interstitial ... The findings suggest the classifier,s potential to help ... surgery to resolve ambiguity in IPF diagnosis – ...
Breaking Biology Technology:5 Days to Meet ARGUS - The World's First Contactless Emotions Scanner 2CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 2CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 3CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 4CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 5CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 6CytRx Reports Positive Updated Phase 2 Aldoxorubicin Clinical Trial Results in Glioblastoma Multiforme (Brain Cancer) 7RepliCel to Present Unique Autologous Cell Treatment for Achilles Tendinosis at International Society for Cellular Therapy Conference 2RepliCel to Present Unique Autologous Cell Treatment for Achilles Tendinosis at International Society for Cellular Therapy Conference 3Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 2Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 3Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 4Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 5
... Sept. 18 Pharmasset, Inc.,(Nasdaq: VRUS ) announced ... Global Life Sciences Conference being held from September 24 ... Pharmasset,s President & Chief,Executive Officer, will provide an overview ... AM (ET). To access a simultaneous webcast of ...
... Calif., Sept. 18 Dynavax,Technologies Corporation (Nasdaq: ... Chief Financial Officer, will present an overview of ... Conference in New York, New,York on Tuesday, September ... a.m. PDST). The presentation will be webcast. ...
... Survival Advantage of ... Cells after HIV Infection, RICHMOND, Calif., Sept. 18 ... today the presentation of data,demonstrating that human CD4 T-cells ... with zinc finger DNA-binding protein nucleases,(ZFN(TM)) and preferentially survive ...
Cached Biology Technology:Pharmasset to Present at the UBS Global Life Sciences Conference on Monday, September 24th 2Dynavax to Present at UBS 2007 Global Life Sciences Conference 2Sangamo BioSciences Presents Data Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 2Sangamo BioSciences Presents Data Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 3Sangamo BioSciences Presents Data Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 4Sangamo BioSciences Presents Data Demonstrating 'In Vivo' Protection Against HIV Infection by CCR5-ZFN Therapeutic 5
... Transcriptase (AMV RT) catalyzes the polymerization of ... hybrids (1). It requires a primer (DNA ... as well as Mg2+ or Mn2+. The ... Both nonionic detergents and sulfhydryl compounds stabilize ...
Request Info...
...
Request Info...
Biology Products: