The radula is a unique feeding organ found in many mollusks, such as snails and slugs. It resembles a ribbon-like structure covered with tiny, tooth-like projections. These teeth help the mollusk scrape food off surfaces, like algae from rocks, allowing them to eat effectively in their aquatic or terrestrial environments. Unlike teeth in mammals, the radula is constantly worn down and replaced throughout the mollusk's life. This adaptation is essential for their survival, as it enables them to feed on various materials. The radula showcases the incredible diversity of feeding strategies in the animal kingdom, particularly among invertebrates.