The tools associated with Cromagon ( light throwing weapons ) are only useful for large game if one employs dogs to hold the prey at bay while they are used.  Prior to dogs being used, humans had to perform this dangerous task themselves resulting in rodeo-like injuries in Neanderthals and requiring much stouter spears which were also used to deliver the killing blow.  It has been said that one man with a pack of dogs can out-hunt 20 men without dogs.  With the game safely held at bay, multiple killing strikes can be mad from a safe distance using projectile weapons.  It's so easy to hunt with dogs in this manner that it's illegal in all 50 states being deemed "unsportsmanlike".

It's interesting that 15,000 generations passed before the DNA for tameness ( tolerance for other species) resulted in morphologically correct dogs just as 15,000 generation passed before modern DNA resulted in the earliest morphologically correct modern humans.  Perhaps the tameness gave both species a great hunting advantage before the morphological differences ( shorter snouts, less muscle mass, hair patterns - the same in both species) became evident.  

The earliest forms of dog breeds are coursing hounds( greyhounds, salukis, etc).  Their gracile form's primary advantage lies in their cooling ability - an ability that would have been far less useful until the Earth warmed 14,000 years ago and the first morphologically correct dogs appear.  Northern breeds ( huskies, German shepherds, etc) retain a much more wolf-like appearance.

Ray Audette
Author "NeanderThin"
www.NeanderThin.com