Equus quagga quagga photo © Frederick York

Extinct quagga as a non-consorter

Unlike all other subspecies of the plains zebra, the extinct quagga probably did not consort with wildebeests. This is because the quagga lacked disruptive striping and was so much larger than the coexisting black wildebeest, defeating the purpose of the juxtaposition.
 
Robin and the Honey Badger, 15 March 2016