A relict is a surviving remnant of a natural phenomenon. * In biology a relict (or relic) is an organism that at an earlier time was abundant in a large area but now occurs at only one or a few small areas. * In ecology, an ecosystem which originally ranged over a large expanse, but is now narrowly confined, may be termed a relict. * In geology, the term relict refers to structures or minerals from a parent rock that did not undergo metamorphosis when the surrounding rock did, or to rock that survived a destructive geologic process. * In geomorphology, a relict landform is a landform formed by either erosive or constructive surficial processes that are no longer active as they were in the past. * In agronomy, a relict crop is a crop which was previously grown extensively, but is