© BabyNuke/WikipediaCommon dolphin.
Sarasota - Dolphins are beautiful creatures, but mysterious, and perhaps no mystery is greater than why each year a small number of dolphins beach themselves, usually fatally.
Now a Mote Marine scientist thinks he has found at least part of the answer: Deaf dolphins.
Randy Wells, who helped author a study about dolphin strandings, said most dolphins that beach themselves have at least partial hearing loss.
The answer isn't as surprising as it seems, Wells said.
"These animals live in an environment where they can't see very far, just because it's water and it's often times murky. "So sound is a crucial player in their lives."
So crucial, Wells says, that a dolphin with hearing problems will find it almost impossible to find food, to stay with other dolphins in their pod and to keep their sense of direction.
Wells, David Mann with the University of South Florida and 14 other researchers studied numerous cases of dolphin strandings. To test their hearing, they used the same basic hearing tests doctors use on infants.
The result?