Peacock mantis shrimp revealing itself from a burrow shrimp,shrimps,crustacean,crustaceans,exoskeleton,claw,claws,reef,reef life,Animalia,Chordata,Arthropoda,Crustacea,Malacostraca,Stomatopoda,Odontodactylidae,Odontodactylus,Odontodactylus scyllarus,mar