Many bat species emit echolocation calls and use the returning echoes to find their way, detect the presence of fluttering ...

Birds tweet, squawk, chirp, hoot, cluck, and screech to communicate with each other. Some birds have found another way to talk, though: they make sounds by fluttering their feathers or smacking their ...

Northwestern University researchers have developed the first physics-based metric to predict whether or not a person might someday suffer an aortic aneurysm, a deadly condition that often causes no ...

Ear fluttering can result from several conditions, including tinnitus, eustachian tube dysfunction, patulous eustachian tube, Ménière’s disease, and middle ear myoclonus. Pulsatile tinnitus often has ...

Birds tweet, squawk, chirp, hoot, cluck, and screech to communicate with each other. Some birds have found another way to talk, though: they make sounds by fluttering their feathers or smacking their ...