[NAEP] What makes us unique?

[Dawn Wiseman]

The use of names in hailing other creatures has long been assumed to 
be unique to humans.

However, a study conducted by Laela Sayigh, a professor of marine 
biology at the University of North Carolina at Wilmington, now 
suggests otherwise.

CBC
http://www.cbc.ca/story/science/national/2006/05/09/dolphins.html

CNN
http://edition.cnn.com/2006/TECH/science/05/09/dolphins.names.reut/index.html

National Geographic
http://news.nationalgeographic.com/news/2006/05/060508_dolphins.html