Chimps, Too, May Use Laughter for Social Gain03/03/11
THURSDAY, March 3 (HealthDay News) -- Just like humans,
chimpanzees mimic the laughter of others in order to strengthen
social bonds, say researchers who studied 59 chimpanzees living in
four groups in a sanctuary in Zambia.
Their finding suggests, they say, that chimpanzees and other
great apes have a more complex social use of expressions than
"We found that their responsive laughter shows a similarity to the conversational laughter of humans," the study's lead author, Marina Davila-Ross, a behavioral biologist at the University of Portsmouth, in England, said in a university news release. "Both are shorter than spontaneous laughter, and both seem designed to promote social interaction."
"These sorts of responses may lead to important advantages in cooperation and social communication ... qualities that help explain why laughter and smiles have become integral tools of emotional intelligence in humans," she added.
The study, being published in the journal
Emotion, also found that chimpanzees in newer groups mimic the laughter of their companions more often than those in established groups, where the chimpanzees know one another well.
The Jane Goodall Institute of Canada has more about
Copyright © 2011
. All rights reserved.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.