Flounder’s Shape-shifting Sand Match
Flounders completely transform their bodies to achieve perfect camouflage. These fish start life swimming upright like typical fish, but one eye gradually migrates to join the other on top as they mature. This allows them to lie flat on the seafloor while keeping both eyes alert for danger. Their skin contains special cells that detect surrounding colors and patterns, letting them match sandy or rocky bottoms within minutes. They can even create complex spotted patterns to match gravelly areas.