Waller, Bridget M <br/><br/>
Orangutans modify facial displays depending on recipient attention.  [electronic resource] 

 -  PeerJ  2015 
 - e827 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2167-8359 
<br/><br/><label>Standard No.: </label>10.7717/peerj.827  doi