This weeks Marine Invertebrate Taxonomy practical was all about crustaceans...everything from crabs, prawns and barnacles. It so far has been the week that the students have been most interested in learning about the organisms. The crab above, Liocarcinus puber, aka the velvet swimming crab or devil crab (because of its red eyes) is a vicious crab and will quite readily attack you despite it being a vegetarian. While doing the HSE Professional Diving course in 2007 I saw a fair number of these crabs hanging out in rock crevices, but I was never actually lucky enough to see one 'swimming' in the water column. Maybe one day...
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