Adult Sally Lightfoot crab blazing red and orange against jet-black Galapagos lava rock under overcast skies.

Crab

Sally Lightfoot Crab (Grapsus grapsus) One of the most vivid animals in the Galapagos – adults turn brilliant red-orange after spending their youth camouflaged in black to match the lava. Year-round residents of the Galapagos shoreline, found on nearly every rocky coast across the archipelago. Wikipedia | iNaturalist