Marine gastropods are a diverse group of mollusks that primarily inhabit ocean environments. They are characterized by their soft bodies, which are often protected by a coiled shell. Common examples include snails and slugs, and they can be found in various marine habitats, from coral reefs to deep-sea environments. These creatures play essential roles in their ecosystems, serving as grazers that feed on algae and detritus. Some marine gastropods, like the cone snail, are also known for their unique adaptations, including venomous harpoons used for hunting prey. Their varied forms and behaviors make them a fascinating subject of study in marine biology.