004701 01 Invertebra Crab Horseshoe 1 Adult Adults Age Of Subject America American Animal Animalia Animals Aquatic Arthropod Aquatic Arthropods Aquatic Life Arthropod Arthropods Artifact Bioprospecting Biotechnology Blood Bloody Building Buildings Characteristic Concept Conservation Crab Crabs Crustacean Crustaceans Decapoda Eucarida Eumalacostraca Food Type Geographic Geography Horseshoe Crab Horseshoe Crabs Individual Individuals Industry Invertebrate Invertebrates King Crab King Crabs Lab Laboratory Land Landscape Landscapes Limulus Limulus Polyphemus Location Malacostraca Marine Crustacean Marine Life Massachusetts Meat And Plant Eating Animal Medical Medicinal Medicine Nature Near Threatened North America North American Number Of Subjects Object Omnivore Omnivorous One Pharmaceutical Photographic Technique Place Pleocyemata Protected Status Research Scenery Scenic Science Sciences Sea Life Species Structure Subject United States US USA Vertical Wildlife Frans Lanting