With no specialized sound-producing organs found in these sharks, the researchers are confident that the clicks come from their strong, interlocking teeth snapping together. These platelike teeth, ...

In his home office in Durham, Duke neuroscientist Richard Mooney shows a series of images of a bird's brain on song. In one, ...

Birds change their songs to be heard over the sound of automobile traffic, and when that doesn't work, they get aggressive. A new study in the journal Animal Behavior found that Yellow Warblers, which ...

With piercing eyes and an air of silent command, this mysterious giant of the night weaves through the shadows, cloaked in ...