A whale with a distinctly human-like voice

A whale with a distinctly human-like voice

Blue Whale Song
http://www.youtube.com/watch?v=UStjSuhBBnY

Whale Song
http://www.youtube.com/watch?v=vPPjS4uMwtw

A whole lot more information about whales and whale evolution can be found on this post:
http://cavalierscience.blogspot.com/2009/02/whale-evolution-multimedia.html