Humans Can Develop Bat-Like Echolocation: Acoustic signaling using tongue clicks could aid the blind, study shows
US News and World Report - July, 2009
Echolocation Allows Blind Humans to 'See'
Discovery News - July, 2009
Humans Can Learn to "See" With Sound, Study Says
National Geographic News - July. 2009
Spanish scientists develop echolocation in humans
PhysOrg - June, 2009