Why do dolphins make so many sounds?
A. Whistle like sounds help dolphins keep in contact and communicate with each other as they travel and feed. Dolphins “echolocate” to find their food or to scan their surroundings. They direct “clicks” into the water and the clicks rebound off solid objects (fish, logs, boats) and echo back to the dolphins. Dolphins listen for the strength of the rebounding clicks to identify what the object is and its distance from them. All of these clicks and whistles are created in the dolphin’s nasal passages just below the blowhole.
