I have posted pictures of white-tailed deer (Odocoileus virginianus) and racoon (Procyon lotor) tracks before (here and here). Here is a deer print in soft mud that shows the marks of the dewclaws behind the cloven hoof. The dewclaws are small toes farther up on the deer's foot. They don't normally touch the ground except in deep mud or snow.
Here is another set of prints photographed at the same location. Next to the deer print is a pair of raccoon prints.