Who are they?
Crustaceans belong to the same grouping of animals as insects (Arthropoda). In the Great Barrier Reef, they play a very important role in marine ecology and commercial fisheries.
Soft bodies covered by a hard segmented, exoskeleton
Body divided into head, thorax (or cephalothorax) and abdomen
Paired jointed appendages on thorax and abdomen
2 pairs of antennae