This animation with the Yukon sled race logo represents the footprints of the sled dogs. The footsteps of the sled dogs running across the screen until a certain point then jumping then continuing of the trail and running across the screen. Then jumping into the snow left footprint in the snow. The foot print then continue in the trail and keep on going representing the Yukon sled race.
This loop represents one pair of husky footprints coming in to the snow and leaving the impression of where the footprint would be left behind.