Navigation Links
Researchers discover oldest evidence of nails in modern primates
Date:8/15/2011

GAINESVILLE, Fla. From hot pink to traditional French and Lady Gaga's sophisticated designs, manicured nails have become the grammar of fashion.

But they are not just pretty when nails appeared on all fingers and toes in modern primates about 55 million years ago, they led to the development of critical functions, including finger pads that allow for sensitive touch and the ability to grasp, whether it's a nail polish brush or remover to prepare for the next trend.

In a new study co-authored by University of Florida scientists, researchers recovered and analyzed the oldest fossil evidence of fingernails in modern primates, confirming the idea nails developed with small body size and disproving previous theories nails evolved with an increase in primate body size. More than 25 new specimens of Teilhardina brandti an extinct primate originally described from a single lower molar include pieces of upper teeth and ankle bones that show the mammal lived in trees. Its nails allowed the lemur-like animal to grasp onto branches and move through the trees with more agility, researchers said.

"If you take all the primates that are alive today, they're all going to have characteristics that look the same, but unlike people, many of them live in trees," said co-author Jonathan Bloch, an associate curator of vertebrate paleontology at the Florida Museum of Natural History on the UF campus. "By finding parts of the skeleton of this primitive primate, we are able to test whether nails were present in the common ancestor of the group that includes lemurs, monkeys, and humans it's direct evidence as opposed to speculation."

Appearing in the current online edition of the American Journal of Physical Anthropology, the study provides a better understanding of the evolutionary relationships of one of the oldest known modern primates, as well as the time frame and environmental conditions that allowed for the development of nails on all fing
'/>"/>

Contact: Jon Bloch
jbloch@flmnh.ufl.edu
352-273-1938
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/22/2014)... Oct. 21, 2014 Aware, Inc. (NASDAQ: ... today reported financial results for its third quarter ended September ... 2014 was $6.0 million, an increase of 40% compared to ... in the third quarter of 2014 was $4.1 million compared ... operating income in the current three month period was primarily ...
(Date:10/18/2014)... of patients with undiagnosed, suspected genetic conditions, a certain ... higher molecular diagnostic yield than traditional molecular diagnostic methods, ... The study is being released to coincide with the ... sequencing, which sequences the protein­coding region of the genome ... in a cell or organism), has been rapidly applied ...
(Date:10/17/2014)... German . ... When treating overdoses, doctors are often limited to supportive therapy ... is a combination of drugs involved. So what can be ... grandmother,s pills? ETH professor Jean-Christophe Leroux from the Institute of ... to this question. "The task was to develop an agent ...
Breaking Biology News(10 mins):Aware, Inc. Reports Third Quarter 2014 Financial Results 2Aware, Inc. Reports Third Quarter 2014 Financial Results 3Aware, Inc. Reports Third Quarter 2014 Financial Results 4Aware, Inc. Reports Third Quarter 2014 Financial Results 5Aware, Inc. Reports Third Quarter 2014 Financial Results 6Aware, Inc. Reports Third Quarter 2014 Financial Results 7Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Emergency aid for overdoses 2Emergency aid for overdoses 3
... Direction Chocolate Chip Cookies TM lower cholesterol and ... disease, according to a published study in The Journal ... with a combination of psyllium and plant sterols, are ... with cholesterol. , The American Heart Association estimates ...
... than boots, a screen and a bucket, scientists studying a ... biomass in Tampa Bay now say they have found the ... the development of the modern-day human immune system. , The ... system protein that is similar to but much hardier than ...
... everything of importance in biology. The genome rules all of ... that among the diverse forms of RNA, a kind of ... and with genes directly to manage the genome from behind ... the vast stretches of DNA that do not code for ...
Cached Biology News:New study finds chocolate chip cookies lower cholesterol 2Tiny Tampa Bay fish key to evolution of immune system 2Tiny Tampa Bay fish key to evolution of immune system 3Peering into the shadow world of RNA 2Peering into the shadow world of RNA 3
(Date:10/22/2014)... 22, 2014 Grace Century, a private ... projects, announces the addition of Dr. Yousef “Josh” ... advisory team. Dr. Siddiqui will provide further healthcare expertise ... graduate of University College Medical School in ... medicine in 2001. With further certification as a General ...
(Date:10/22/2014)... According to new market research report ... Integration, Deployment & Support), by Service Model (SaaS, ... Others (Hybrid & Community)) - Global Forecast to ... Cloud Professional Services Market into various sub-segments with ... also identifies the drivers and restraints for this ...
(Date:10/22/2014)... , Oct. 22, 2014 /PRNewswire/ - iCo Therapeutics ("iCo" ... announced next steps for its Oral Amphotericin B ... its in vitro work involving samples ... now plans to complete pre clinical studies and ... Phase 1A clinical trial, utilizing approximately $700,000 of ...
(Date:10/22/2014)... Research and Markets  has announced the addition of ... Geography - Global Analysis and Forecast (2014 - 2020)" ... electronics, also called as polymer electronics or plastic electronics, ... small conductive molecules and electrically conductive polymers. It is ... carbon based, made using synthetic strategies developed in the ...
Breaking Biology Technology:Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 2iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 3Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3
... THE WOODLANDS, Texas, September 1 Berlin Heart Inc.,reported ... the Berlin,Heart EXCOR(R) Pediatric IDE Study after having received unconditional,approval ... The Principal Investigator, Dr. Charles Fraser, ... of Surgery and Pediatrics,at Baylor College of Medicine ...
... , , ST. LOUIS and ... MON ) today announced a non-exclusive research and commercial license agreement ... genome engineering, for broad use of its meganuclease technology in plants. ... be directed to a single site in the genome of a ...
... HARBIN, China, Sept. 1 /PRNewswire-Asia-FirstCall/ -- China Kangtai ... integrated grower,developer, manufacturer and marketer of a variety ... company has successfully completed the trial,production of cactus-based ... the,forth quarter in 2009: (i) low nicotine and ...
Cached Biology Technology:Major Milestone Achieved - Berlin Heart EXCOR Pediatric IDE Study 2Monsanto Licenses Use of Cellectis' Innovative Genome Modification Technology 2Monsanto Licenses Use of Cellectis' Innovative Genome Modification Technology 3China Kangtai Cactus Biotech to Launch Patented Cactus-based Low Tar, Low or Zero Nicotine Cigarettes 2China Kangtai Cactus Biotech to Launch Patented Cactus-based Low Tar, Low or Zero Nicotine Cigarettes 3
...
... This modular benchtop fume hood ... allowing safe indoor release of ... most organic contaminants. Configurations are ... flow; options include final HEPA ...
...
... The Staccato Series of systems provide ... drug discovery , genomics, proteomics and drug ... three base configurations; Mini Workstation Series, Application ... Sciclone ELISA Station is a remarkably compact ...
Biology Products: