HOME >> BIOLOGY >> NEWS
Ape gestures offer clues to the evolution of human communication

Researchers at the Yerkes National Primate Research Center, Emory University, have found bonobos and chimpanzees use manual gestures of their hands, feet and limbs more flexibly than they do facial expressions and vocalizations, further supporting the evolution of human language began with gestures as the gestural origin hypothesis of language suggests. This study appears in the current issue of the Proceedings of the National Academy of Sciences.

Working with two groups of bonobos (13 animals) and two groups of chimpanzees (34 animals), Yerkes researchers Amy Pollick, PhD, and Frans de Waal, PhD, distinguished 31 manual gestures and 18 facial/vocal signals. They found both species used facial/vocal signals similarly, but the same did not hold true for the manual gestures. Rather, the researchers found both within and between species the manual gestures were less closely tied to a particular emotion and, thereby, serve a more adaptable function. For example, a single gesture may communicate an entirely different message depending upon the social context in which it is used.

"A chimpanzee may stretch out an open hand to another as a signal for support, whereas the same gesture toward a possessor of food signals a desire to share," said Pollick. "A scream, however, is a typical response for victims of intimidation, threat or attack. This is so for both bonobos and chimpanzees, and suggests the vocalization is relatively invariant," Pollick continued.

By studying similar types of communication in closely related species, researchers are able to determine shared ancestry. We know gestures are evolutionarily younger than facial expressions and vocalizations, as shown by their presence in apes and humans but not in monkeys. "A gesture that occurs in bonobos and chimpanzees as well as humans likely was present in the last common ancestor," said Pollick. "A good example of a shared gesture is the open-hand begging gesture, used by both ap
'"/>

Contact: Emily Rios
erios@rmy.emory.edu
404-727-7732
Emory University
30-Apr-2007


Page: 1 2

Related biology news :

1. New blood test might offer early warning of deep belly fat
2. UCF nanoparticle offers promise for treating glaucoma
3. Lucky 13 as new gene discovery offers further hope for childhood blindness
4. Largest synthetic gene ever built offers insights into anti-malarial drug resistance
5. Soils offer new hope as carbon sink
6. Gene therapy offers new hope for treatment of peripheral neuropathy
7. Sheep offer model for undernourishment in pregnant teen girls
8. Study of protein folds offers insight into metabolic evolution
9. Soy estrogens and breast cancer: Researcher offers overview
10. NIST building software offers green product advice
11. Scientists offer new view of photosynthesis

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ape gestures offer clues the evolution human communication

(Date:8/19/2014)... Some infants born with neonatal abstinence syndrome (NAS) ... difficult time going through withdrawal than others, but ... genetic and epigenetic (when genes are turned on ... potential factors, researchers at Boston University School of ... a first of its kind study to identify ...
(Date:8/19/2014)... in college biology and other science courses are ... ways, and now they have a new textbook ... Life Sciences," published this month by Princeton Press ... for Mathematical and Biological Synthesis (NIMBioS), teaches readers ... be used to explore and explain biological phenomena. ...
(Date:8/19/2014)... been awarded a nearly $40,000 grant from the National ... of the National Park Service (NPS) and U.S. Department ... study of the energy efficiency and cost effectiveness of ... climates. , Radiant barriers are reflective thermal insulations commonly ... thereby reducing the amount of heat emitted in the ...
Breaking Biology News(10 mins):In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2New textbook introduces undergraduates to mathematics for the life sciences 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 3
(Date:8/18/2014)... Diagnostics Inc. (TSX-V: SQD), a life sciences company that ... microarray diagnostics, today announced it will hold an investor ... ET.  During the call, Andrew ... SQI,s recent commercialization progress and then introduce Dr. ... to the Board of Directors of SQI and also ...
(Date:8/18/2014)... Global HIV Infection Drug Market and Pipeline Insight is ... HIV infection and the number of deaths due to AIDS ... across the globe. It has been estimated that the death ... 2013, with the rates for children being even much lower. ... rates has been the improved access to antiretroviral drugs and ...
(Date:8/18/2014)... , Aug. 18, 2014 Dyadic International, ... whose patented and proprietary technologies are used to ... for the bioenergy, bio-based chemical, biopharmaceutical and industrial ... a Registration Statement on Form 10 with the ... Logo - http://photos.prnewswire.com/prnh/20110621/CL06708LOGO ...
(Date:8/16/2014)... Arlington has received a $229,214 grant from the Walmart ... testing system that would cut the manufacturing costs of ... United States that were formerly built overseas. , The ... announcement of $4 million in awards to seven research ... in Denver made possible through the collaboration between Walmart, ...
Breaking Biology Technology:SQI Diagnostics Announces Investor Conference Call with Dr. Allan Pronovost 2SQI Diagnostics Announces Investor Conference Call with Dr. Allan Pronovost 3Global HIV Infection Drug Market Overview 2Global HIV Infection Drug Market Overview 3Global HIV Infection Drug Market Overview 4Dyadic International Files Form 10 Registration Statement 2Dyadic International Files Form 10 Registration Statement 3Dyadic International Files Form 10 Registration Statement 4UT Arlington receives Walmart, Walmart Foundation innovation grant 2UT Arlington receives Walmart, Walmart Foundation innovation grant 3
Cached News: