HOME >> BIOLOGY >> NEWS
UMass anthropologist investigates dental development and body size in primates

AMHERST, Mass. University of Massachusetts anthropologist Laurie R. Godfrey is a member of a team of researchers that finds a number of species of living and recently extinct lemurs living on Madagascar share very accelerated development of their teeth and can chew leaves and other hard-to-process foods soon after birth. The findings are published in the April 30 issue of the Proceedings of the National Academy of Sciences.

Godfrey, along with Gary Schwartz of George Washington University, and Karen Samonds of Stony Brook University, examined the teeth of an extinct species of large chimpanzee-sized sloth lemurs, Palaeopropithecus, and found that like some existing lemurs, the indris and sifakas, they were born with highly developed teeth. By weaning, they are, in effect, little chewing machines with mouths full of adult teeth, Godfrey says. This would have helped them to survive in the precarious and unpredictable environment of Madagascar.

The findings are significant because ape-sized primates chimpanzees, gorillas, orangutans, and humans develop their teeth very slowly, Godfrey says. In chimpanzees, the young dont see molars begin to erupt, or push through the gums, until about age 3, and dental eruption is not complete until age 13. In humans, the first permanent molars erupt at age 6 and it takes until past age 20 for molars to completely erupt, she says. The rapid development of teeth is probably a survival mechanism for the lemurs, Godfrey says, giving them the ability to chew solid food shortly after they are born. The study of the teeth of the extinct Palaeopropithecus was conducted by looking at the microstructure of its teeth to calculate how long it took for the animals tooth crowns to form, and how soon before birth tooth crown formation began, she says.

Godfrey has spent nearly three decades investigating fossils in Madagascar and has specialized in studying lemurs. Madagascar is a large island off the east coast of Afric
'"/>

Contact: Elizabeth Luciano
luciano@journ.umass.edu
413-545-0444
University of Massachusetts at Amherst
30-Apr-2002


Page: 1 2

Related biology news :

1. UMass scientist identifies gene that governs obesity, physical activity, sex behaviors in mice
2. UMass team to study bioremediation of acid, heavy metals from collapsed mind
3. Microorganisms are cleaning up Boston Harbor, UMass study finds
4. UMass researcher helping the EPA to determine health effects of spent rocket fuel
5. UMass microbiology team probes bacteriums surprising survival tactics
6. UMass study uses microbes to turn mud into electricity
7. UMass researchers find environment on Earth that mimics Mars geochemically and supports ancient life form
8. A sticky situation for ants and bees: UMass biologist looks at how these insects adhere to various surfaces
9. UMass sponsoring world environmental conference
10. Galapagos finches sing different mating songs due to evolutionary diversification of beaks, says UMass biologist
11. New species arise more quickly than previously believed, UMass researcher finds

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/12/2019)... ... November 12, 2019 , ... ... from nonprofit U.S. universities and research institutions for its Instrumentation Grant for ... up to $1.2 million per site for the acquisition of instrumentation, development and ...
(Date:11/9/2019)... ... November 08, 2019 , ... StageBio ... histology, pathology, biomarker development, and archiving services for the biopharmaceutical, medical device ... Histo-Scientific Research Laboratories (HSRL), Vet Path Services (VPS) and Tox Path Specialists ...
(Date:11/6/2019)... ... November 06, 2019 , ... Genomenon® ... Engine now includes the ability to search the entirety of the genomic literature ... genetic and rare diseases. , Patients, particularly those with rare diseases, don’t always ...
Breaking Biology News(10 mins):
(Date:11/6/2019)... ... November 06, 2019 , ... LeadingBiotech ... dialogue, today announces its East/West CEO conference to be held January ... , Kicking off the week of the J.P. Morgan Healthcare Conference and ...
(Date:11/2/2019)... ... , ... A clinical trial usually involves many different parties, ... investigators, supply chain managers, manufacturers, IRT, CRAs and so on. Lack of communication ... potentially leading to patient risk. , By having a single source of truth, ...
(Date:10/30/2019)... ... October 30, 2019 , ... Western University ... roles innovation and technology play in educating the next generation of health care ... opportunities and presentations by WesternU administrators and representatives of companies working with the ...
(Date:10/26/2019)... ... October 24, 2019 , ... Sparks ... Marketing Group (BMMG), a boutique healthcare-specific marketing firm, to strengthen the agency’s ... Healthcare Strategy Division. , Healthcare clients in pharma, bio-therapeutics, medical device and healthcare ...
Breaking Biology Technology:
Cached News: