Five hundred dogs barked, howled, growled, whimpered, ran, sat, panted, sniffed and greeted each other with varying degrees of friendliness.
It was the 25th annual Dog Jog, put on by the UW-Madison School of Veterinary Medicine to raise money for humane societies in the area with registration fees and pledges.
The dogs brightened a cloudy, drizzly Sunday morning with their exuberant energy and varied sizes, shapes and personalities.