The unheard beckoning of an asinine chestnut

 
 
  
 

 

The unheard beckoning of an asinine chestnut
 
Links to the images that inspired this bio-insight:

http://www.cicadatree.org.sg/

http://3.bp.blogspot.com/

http://farm8.static.flickr.com/

http://www.gorongosa.org/

http://l7.alamy.com/zooms/

https://c2.staticflickr.com/

http://www.listeningearth.com.au/

 

 

Taurotragus oryx photo by farmgirl via Wikimedia Commons

 

Taurotragus oryx photo by Lip Kee via Wikimedia Commons

 

The common eland appears to use a peculiar combination of sight and sound – in the form of a conspicuous carpal bar and loud clicking from the carpal joint – to keep contact within the herd. The khur and other Asian wild asses have a similar marking in the form of a conspicuous chestnut, which suggests that they too may be tuned in to a joint-click, but one falling below the limits of human hearing.

 

Robin and the Honey Badger, 22 March 2016

 

Equus hemionus khur photo by Lip Kee Yap via Wikimedia Commons

 

Equus hemionus khur photo by Sballal via Wikimedia Commons