Ok, folks might actually like this

I have, for your listening pleasure, a collection of 22 mp3s of canine heart sounds, apparently recorded by Stephen Ettinger, D.V.M. 1-3 are normal sounds, 4-10 are acquired murmurs, 11-18 are variations in heart sounds, and 19-22 are congenital murmurs. Some of you dog-types might actually really like this, I understand listening to the sound of heartbeats reminds people of the womb, and canine hearts beat somewhat differently than humans. Enjoy.

http://www.ubu.com/outsiders/365/2007/093.shtml