Ex-situ conservation is the preservation of samples of biological origin outside their natural habitats. This involves conservation of genetic resources as well as wild and cultivated species. A seed bank stores seeds as a source for planting in case seed reserves elsewhere are destroyed. It is a type of gene bank. The seeds stored may be food crops or those of rare species to protect biodiversity. Whereas in-situ conservation is the conservation and maintenance of samples of living organisms in their natural habitat. Wild life sanctuary, sacred groves and national park are examples of in-situ conservation.