pigmy seahorse

For my money, this is the most confounding camo in the sea. While plenty of ocean critters blend in with their surroundings—the aptly named stonefish, for instance, looks much like a fish, and even more like a stone—and the cuttlefish famously changes its skin color and texture on the fly to match its surroundings, the pygmy seahorse goes about things differently. —Absurd Creature of the Week: The Littlest, Most Adorable-est Seahorse Fits on Your Fingernail