Identifying Hyenas By Their Giggle
Sunday, Apr 26, 2009
...according to behavioral neurologists from the University of California, Berkeley and the Université de Saint-Etienne, France. They have developed a way to identify a hyena by picking out specific features of its giggle.
Identifying Hyenas By Their Giggle, Science Daily, April 26, 2009, http://www.sciencedaily.com/releases/2009/04/090426094329.htm.