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:7/23/2014)... LAFAYETTE, Ind. Spinach gave Popeye super strength, but ... for a group of scientists: the ability to convert ... University physicists are part of an international group using ... process by which plants convert the sun,s energy into ... we study are part of the most efficient system ...
(Date:7/23/2014)... drought that has the entire country in its grip is ... also be responsible for the proliferation of a heat-loving amoeba ... and hot springs, which the drought has made warmer than ... of an infection caused by this parasite after swimming in ... nose of an individual and travels to the brain. Nose ...
(Date:7/23/2014)... Chrysomya megacephala is commonly found in dead bodies ... time of death, referred to as the post mortem ... C. megacephala from Tamil Nadu is provided for ... characterization through generation of DNA barcoding. This study, significant ... Biodiversity Data Journal . , Chrysomya megacephala ...
Breaking Biology News(10 mins):Spinach could lead to alternative energy more powerful than Popeye 2Diseases of another kind 2Dead body feeding larvae useful in forensic investigations 2
... University and the Denver Crime Lab report in the journal ... to fuse with blood cells in a way that gives ... to enter the bloodstream and seed sites of metastasis around ... marrow transplant patient with cancer, along with DNA fingerprinting of ...
... mutations can reveal a great deal about our immune ... clinical expectations. Australian scientists acknowledge such a gap ... examines people with ,Autosomal Dominant Hyper IgE Syndrome,. ... STAT3 gene. This makes patients slightly more susceptible than ...
... discovered that a human antiviral enzyme causes DNA mutations that ... in the July 14 issue of Nature Genetics , ... is responsible for more than half of breast cancer cases. ... APOBEC3B is part of a family of antiviral proteins that ...
Cached Biology News:CSI-style DNA fingerprinting tracks down cause of cancer spread 2Surprise finding reveals how adaptive our immune systems can be 2Antiviral enzyme contributes to several forms of cancer, University of Minnesota researchers say 2
(Date:7/24/2014)... 1000 balances – 4 steps – One ... needs and expertly narrows down the mass of product ... even terminals. , First, select the working environment, ... readability instead) and define the accuracy – it’s really ... down the list to models that fit best with ...
(Date:7/24/2014)... Draper University, a top program ... announce that for 6 weeks this summer, 39 ... on the Draper University campus in the heart ... focused on entrepreneurship, building real-world skills, and “learning ... its sixth cohort, continues to refresh its curriculum ...
(Date:7/24/2014)... July 24, 2014   Cypher Genomics, Inc., ... appointment of Adam Simpson as president ... rapid and comprehensive annotation and interpretation of individual ... "Cypher,s technology has the potential to ... enhancing diagnostic accuracy, optimizing therapeutic approaches and reducing ...
(Date:7/24/2014)... July 24, 2014 The patent ... molecular diagnostic test results. It also enables true ... the validation and reporting of high profile assays ... is a rapidly growing area of biotechnology that ... predisposition, cancer, and companion diagnostics in personalized medicine. ...
Breaking Biology Technology:Summer Entrepreneurship Program Kicked Off by Draper University in Silicon Valley 2Summer Entrepreneurship Program Kicked Off by Draper University in Silicon Valley 3Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 2Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 3New DNA-barcode Patent Virtually Eliminates False Test Results and Sample Mix-up 2
... Vasogen Inc.,(NASDAQ: VSGN ; TSX:VAS), today announced that ... from the Listing Qualifications Department of The NASDAQ,Stock ... of its common,stock had fallen below $1.00 for ... in compliance with Marketplace Rule 4310(c)(4),(the "Rule"). In ...
... 25 Keryx Biopharmaceuticals,Inc. (Nasdaq: KERX ) announced ... Market ("Nasdaq") stating that the Company is not in,compliance ... on the Nasdaq Global Market pursuant to Marketplace Rule ... dated April 22,2008, is a standard communication when the ...
... April 25 ,Renovis, Inc. (Nasdaq: RNVS ), ... Services have joined ISS/Risk Metrics and Glass Lewis,& ... the merger,agreement with Evotec AG (Frankfurt Stock Exchange: ... May 1, 2008. In the proposed merger,each share ...
Cached Biology Technology:Vasogen Receives NASDAQ Notification Related to Minimum Bid Price 2Vasogen Receives NASDAQ Notification Related to Minimum Bid Price 3Keryx Biopharmaceuticals Receives Nasdaq Notification 2Keryx Biopharmaceuticals Receives Nasdaq Notification 3Proxy Governance and Egan-Jones Recommend Renovis Shareholders Vote For Merger With Evotec 2Proxy Governance and Egan-Jones Recommend Renovis Shareholders Vote For Merger With Evotec 3
... leader in electroporation products and specialty electrodes, ... line for experiment optimization and large volume ... breakthrough in Molecular Delivery. The days of ... typically limited the number of samples and ...
... PolarScreen Progesterone Receptor (PR) Competitor Assay ... screening novel progesterone receptor binding compounds ... assay utilizes a fusion of glutathione ... of human progesterone receptor [PR-LBD(GST)] and ...
... Molecular Imaging Systems group announces the ... Digital Imaging Systems, featuring high resolution ... fluorescence, luminescence, radiographic and chromogenic imaging ... CCD and 10x optical zoom lens ...
Compound(s) tested through a broad panel of 38 ligand binding and enzyme assays targeting the Central Nervous System. Used to determine selectivity and potential GI liabilities of compounds....
Biology Products: