Much like bats and dolphins, some people have developed the ability to analyze bouncing sound waves to generate a picture of their environment. Advanced echolocators have shown increased mental activity in parts of the brain usually devoted for vision. | How Human Echolocation Allows People to See Without Using Their Eyes
Daniel Kish has been blind since he was a baby but that hasn't stopped him living an incredibly active life that includes hiking and mountain-biking. To do this, he has perfected a form of human echolocation, using reflected sound waves to build a mental picture of his surroundings.
The Malaysian Flying Fox (Pteropus vampyrus), is a southeast Asian species of megabat in the family Pteropodidae. Like the other members of the genus Pteropus, or the Old World fruit bats, it feeds exclusively on fruits, nectar and flowers. It is noted for being one of the largest bats and as with all other Old World fruit bats, lacks the ability to echolocate. http://en.wikipedia.org/wiki/Large_flying_fox #Bat #Malaysian_Flying_Fox