You may have trouble determining the difference between the eleven-banded and thirteen-banded chipmunk. Actually that’s a shitty example, unless you can’t count. You may have difficulty determining what type of pine tree that you’re looking at, unless you find the key differences in needle clumping and size of the acorn. That’s exactly how it is for GRRRRMartin and myself. So I wanted to share our key differences in order to determine whether you’re looking at a GRRRRRMartin or a Greg.