I don't know why it should be so surprising or interesting to me... but for some time now I've really noticed how different individuals of the same fish species look from each other. No two are the same. Which seems sorta unlikely, considering 100's of eggs from one female fish being fertilized by one male. You'd think the fish from that nest would be nearly all identical twins. I have seen some fish that looked to me like they were from the same brood.
Warmouth have a number of patterns, and those patterns or sort of repetitive everywhere I've caught them, MO, FL, IL, AR, LA... And the Bantam Sunfish were similarly all different from one another.
Anyway... and then there's individual fish like this, that hardly even look like the same species!