Painted Ghost Crab, Costa RicaThis was my most crabby trip to Costa Rica yet. Crabs seemed to be everywhere, both day and night, including many different species. This is a painted ghost crab. They are great bioindicators — essentially meaning the health of their population in a given area is directly related to the overall health of that ecosystem, including the effects of human interference. Nikon Z8 with Nikkor 500mm PF lens, ISO 360, f/5.6 at 1/500th of a second.