832-383748 - Feet of Red rock crab (Grapsus grapsus) cling to volcanic rock, family of marsh crabs (Grapsidae), island Floreana, Galapagos Islands, Ecuador, South America
1245-1340 - Marine iguana and Sally Lightfoot crab, Punta Suarez, Espanola (Hood) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
1245-1319 - Sally Lightfoot crab (Grapsus grapsus), Sullivan Bay, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
1245-1318 - Sally Lightfoot crab (Grapsus grapsus), Sullivan Bay, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
1245-1279 - Sally Lightfoot Crabs (Grapsus grapsus), Bachas Beach, Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
1116-39939 - An Imperial commensal shrimp (Periclimenes imperator), photographed at night on the Spanish dancer nudibranch (Hexabranchus sanguineus), that it calls home, Philippines
1116-39729 - Both a Crinoid Commensal Shrimp (Periclimenes cornutus) and a Crinoid Squat Lobster (Allogalathea elegans) on a crinoid. These tiny crustaceans are commensal on crinoids or feather stars and take their color from the host, Philippines
1116-39735 - The strings hanging off the dorsal fin of this Great White Shark (Carcharodon carcharias) are parasitic copepods. Photographed just breaking the surface off Guadalupe Island, Mexico
741-5584 - Sally Lightfoot Crab (Grapsus grapsus), Bachas beach, North Seymour Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
764-5150 - Superb starling (Lamprotornis superbus) with an insect, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa
764-5152 - Lilac-breasted roller (Coracias caudata) with an insect, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa