Gastropoda is a large class of mollusks that includes snails and slugs. These creatures are characterized by their soft bodies, which are often protected by a coiled shell in snails. Gastropods are found in a variety of habitats, including oceans, freshwater, and terrestrial environments. They play important roles in ecosystems, such as decomposing organic matter and serving as food for other animals. Gastropods exhibit a unique feature called torsion, where their body twists during development, resulting in the positioning of their anus above their head. This class is diverse, with thousands of species, ranging from the colorful sea slugs to the common garden snail. Their adaptability and varied diets make them significant contributors to their ecosystems.