Chimpanzee performing the ‘grass-in-ear’ behaviour (IMAGE)

Utrecht University

Chimpanzee performing the ‘grass-in-ear’ behaviour

Caption

Val, an adult male chimpanzee performing the ‘grass-in-ear’ behaviour.

Credit

Jake Brooker/Chimfunshi Wildlife Orphanage Trust

Usage Restrictions

Please give proper credit

License

Original 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.