Sea slugs, also known as nudibranchs, are colorful marine creatures found in oceans around the world. They belong to the class Gastropoda, which also includes snails. Sea slugs are known for their vibrant colors and unique shapes, which help them blend into their surroundings or warn predators that they are toxic. These fascinating animals have soft bodies and lack a protective shell, unlike their snail relatives. Sea slugs feed on sponges, coral, and other small marine organisms. Some species can even absorb the toxins from their food, making them unappetizing to potential predators.