NIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development
Caption
This photo shows an infant rhesus monkey before (top) and after (bottom) returning the tongue protrusion gesture.
Credit
National Institutes of Health
Usage Restrictions
None
License
Licensed content
Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.