Colt has rrrreallllllyyyyy long legs. I think he is a cross between a collie and a sheltie. He does not have short legs like a sheltie. Dad was a registered collie but mom's bloodline is questionable - no papers. She was smaller and may have been a cross herself. I have learned so much on this forum. I knew absolutely nothing when I got Colt except I knew we would love him tremendously. Everyone on this forum has been so friendly and helpful. It motivates me to want only the best for my dog and I really like to research things now as opposed to jumping right in. I know with the help from people here, and patience, I will find something that works for Colt. Thanks again....