In this LOARS Web Resource we are only concerned with the Arthropods which are found between the tides on rocky ocean shores.
One of the major classes within the Crustacean group is the Malacostracans. This group contains the lobsters, crabs and prawns. See the diagram above for the Malacostracan body parts.
Arthropods are a massive group of animals and have many more varieties, or species, than all the other groups combined. It is believed that 75% of all animals are Arthropods.
The name arthropod is made up from "arthro" meaning joint, and "pod" meaning leg. Arthropod legs are highly adapted for walking, swimming, feeding and gathering sensory information.
Some arthropods, such as decapod crabs can regrow severed limbs in a process called "regeneration".
Arthropods have a number of characteristics which are common.
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