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People often use specific gestures and their voice when communicating sounds.

Ben P. Stein, Contributor

Watch bats prepare for their nightly flight.

Marsha Lewis, Contributing Producer

Crooning to the upper tier.

Joel Shurkin, Contributor

Middle East group was among first to begin agriculture, settlements, and catered funerals.

Joel Shurkin, Contributor

Human activity forces dolphins and whales to shout.

Joel Shurkin, Contributor

New research pinpoints the acoustic ingredient that gives screams their terror.

Charles Q. Choi, Contributor

Scientists find the route to listening is more complex than they thought.

Joel Shurkin, Contributor

Physicists are developing acoustical "phonons" for computers of the future.

Gabriel Popkin, Contributor

"Noseleaves" may significantly enhance some bat species' echolocation abilities.

Ben P. Stein, Contributor

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