Sonar
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A dolphin's sonar is very complex.
They may use it to find fish, locate an enemy, or to see in the
dark. Dolphins send out high-pitched clicks which bounce off of objects the dolphin cannot
see
normally with his naked eye. They come back to the dolphin and, in it's brain, the dolphin
gets an
almost perfect picture of what is up ahead. Most scientists believe that dolphins have
tough nasal plugs which, when rubbed up against the skull, produces the clicks. A
dolphin's sonar is so
complex it can tell the distance, direction, speed and size.
