I agree with Yukon_Blockhead.  I have found that tragedy and beauty can become intermingled in this unique environment from the time I became a resident in 1964.  When the two come together as one, they can become a force that will haunt you forever.  The images are snapshots in time.  Preserving the head mounts and feeding sled dog teams with the carcasses is a way to make the deaths of these animals meaningful and useful through their sacrifice.