To figure out what mammal tracks you have, first you need to look at the size and the number of toes:
Step 1: Are the tracks over 1 inch in any dimension?
Yes? Then go to Step 3.
No? Then go to Step 2.
Step 2: (The tracks are under 1 inch in all dimensions)
How many toes does it have?
Step 3: (The tracks are over 1 inch in some dimension)
How many toes does it have?