The Biology of Molluscs

Molluscs are diverse animals with soft, unsegmented bodies, often protected by a hard shell. They have a muscular foot for movement, a visceral mass containing organs, and a mantle that secretes the shell. Most molluscs use a specialized radula or similar structures to feed, and many possess gills for breathing in water. Their nervous systems are simple but effective, and they reproduce sexually. Molluscs inhabit a variety of environments, from ocean floors to freshwater and land. Their unique biology allows them to adapt to diverse habitats, making them one of the most successful animal groups on Earth.