If you toyed with the idea of snow or sand this holiday season and find yourself sloshing through the cold, you might perk up with this revelation. Those friends of yours traipsing along the ivory coastlines are actually trotting on fish poop.
The parrotfish, a reef-dwelling rainbow fish inhabiting warm waters, feeds on coral algae. Inevitably, some of the coral ends up passing through the fish’s digestive system when it crunches on the algae. This undigested coral is expelled through the same door as any other waste, accumulating on shores to create the coveted white sand beaches in the tropics.
To read more about this parrotfish poop process (in a spunky yet informative report), check out my article for The Super Fins.