This course covers approximately 20 different phyla of invertebrates as well as some important protozoan groups. It gives an overview of the diversity, morphology, evolution and ecology of each taxon. The labs focus on local fauna and include field trips to the Galveston groins, oyster reefs and mud flats. Students also have the opportunity to perform bottom trawls and benthic grabs in Galveston Bay on one of the university vessels. Additional voluntary field trips are offered.