Dolphins sing ‘Batman’ theme

Scientists have taught dolphins to combine both rhythm and vocalisations to produce music, resulting in an extremely high-pitched, short version of the Batman theme song.

The findings, outlined in two studies, are the first time that nonhuman mammals have demonstrated they can recognise rhythms and reproduce them vocally.

"Humans are sensitive to rhythms embedded in sequences of sounds, but we typically consider this skill to be part of processing for language and music, cognitive domains that we consider to be uniquely human," says Professor Heidi Harley, lead author of both studies.

"Clearly, aspects of those domains are available to other species."

The studies will be presented at the joint meeting of the Acoustical Society of America and NOISE-CON 2005, which runs from 17 to 21 October in Minneapolis. - abc