Sound Production
Air sacs just below the blowhole allow whales to produce sounds for communication and (for those species capable of it) echolocation. These air sacs are filled with air, which is then released again to produce sound in a similar fashion to releasing air from a balloon.
Read more about this topic: Blowhole (anatomy)
Famous quotes containing the words sound and/or production:
“The sound of tireless voices is the price we pay for the right to hear the music of our own opinions. But there is also, it seems to me, a moment at which democracy must prove its capacity to act. Every man has a right to be heard; but no man has the right to strangle democracy with a single set of vocal chords.”
—Adlai Stevenson (1900–1965)
“It is part of the educator’s responsibility to see equally to two things: First, that the problem grows out of the conditions of the experience being had in the present, and that it is within the range of the capacity of students; and, secondly, that it is such that it arouses in the learner an active quest for information and for production of new ideas. The new facts and new ideas thus obtained become the ground for further experiences in which new problems are presented.”
—John Dewey (1859–1952)