The Breadcrumb Sponges comes in a wide variety of shapes and sizes. Since they reside on the coast of the Northern Atlantic and the Mediterranean Sea, they are capable of withstanding things like rough waves and serious storms. Because of its biological diversity this specific sponge has been classified as a new species about 56 times. This sponge lacks a nervous system but it has been discovered that most sea sponges have genes that make a nervous system I sea sponges desperately needed a nervous system then they could make one.