Two Scouts are walking along when they spot some interesting tracks. Scout One - "Hey!! Look animal tracks! I wonder what kind of tracks are those?" Scout Two - " They look like cat tracks, big cat tracks. Let's take a closer look." Scout One - "Gee... you don't suppose these are Mountain Lion tracks, do you? Scout Two - Down on hands and knees examining the tracks with a magnifying glass, looks up and proclaims with certainty; "No, these are definitely Panther tracks; absolutely no doubt about it". Scout One - "How can you tell? They just look like big cat tracks to me". Scout Two - "Its easy, you just need to be observant, look closely at the bottom of this track over here; see, there is an ant squished at the bottom. And there is one in this track over here too. The animal that made these tracks was purposely stepping on ants as he walked." Scout One - "OK I'll buy that, its a big cat that likes to squish ants, but I still don't see how you can be so sure that it was a Panther? Scout Two - "Why its easy, Just look at this strange pattern; (scout pointing to each track in turn) Dead Ant, Dead Ant, Dead Ant, Dead Ant, Dead Ant, Dead Ant, Dead Ant, Dead Dead Dead Ant, ....."