og[Both E. crispata and E. clarki retain living chloroplasts which continue to photosynthesise within the body of the sea slug, providing it with sugars for its own nutrition. See the page on Solar powered sea slugs for further information. The process of taking chloroplasts from algal cells and keeping them has been given the name kleptoplasty
In nudibranchs, which are all carnivorous, many have evolved similar ways of keeping whole single-celled plants (zooxanthellae) alive in their bodies. In most cases the zoxanthellae are obtained from their food, often cnidarians, which already have symbiotic zooxanthellae in their bodies
°°^^^°° Futter Algen, Nahrungsspezialist