"I was fascinated to read about some researchers, who were studying
the clicking sounds made by sperm whales - Moby-Dick. They couldn't figure
out how the sounds fit together. So they called in an African drum master
and he said: 'Oh, there's a kind of a guiding rhythm there, and they do
seem to be listening to each other. I really hear a pattern.' He heard
something the scientists didn't." -- David Rothenberg, author of
Why Birds Sing: A Journey Into the Mystery of Bird Song,
2005-09-19 (original
here if the link is still valid) -- thanks to
nancylebov.