And now, the fish-shaped spot on the coral began to pulsate. A swish of my hand pushed a small current onto the spot and the creature moved off of the formation, diving deeper. Its cryptic coloration began to change wildly as it moved over varied terrain. I watched in stillness as it then settled onto a lower part of the reef and seemed to disappear into the underlying coral - once again a near perfect match. I marveled at the Peacock flounder - one of my favorite vertebrates on the reef!