invertebrate invertebratean animal that lacks a backbone (marine examples include lobsters, shrimp, squid, clams, crabs, and sea stars).Related Articles: Biological OceanographerHot Topic - Monitoring Wind Farm ConstructionHow do marine animals use sound?What are common underwater sounds?Why is sound important to marine animals? Chris Knowlton 2018-01-19T18:09:14+00:00