Yes, sea urchins are known to eat kelp. Kelp is a type of brown seaweed, and sea urchins are herbivorous organisms that feed on various types of marine vegetation, including kelp. They use their specialized mouthparts, known as Aristotle's lantern, to scrape and consume the kelp. However, the extent of their kelp consumption can vary depending on factors such as their population density and availability of other food sources. In certain scenarios, high sea urchin populations can result in overgrazing of kelp forests, damaging the ecosystems they inhabit.
