Which mammals have an organ called a melon and what is it for?

peasypod

Whales, dolphins and porpoises. Dolphins and porpoises produce a sound in the air passages in their heads, which they then send from the front of their heads. There, an oil-filled organ called the melon, focuses or directs the sound. A sound wave might hit an object, such as a fish, and the sound wave then bounces, or echoes back to the dolphin or porpoise (or whale). They can use this echo to tell what kind of fish or other object it hit, how large it is, and much more information about their environment. Aug 05 04, 11:50 PM

SOTHC

There was a breed of sad sheepdogs called Melon Collies Aug 07 04, 3:36 PM