Extinct
In the biology and ecology, extinction or extinction (English: Extinction) refers to the disappearance of one or a family of species. The moment of extinction is usually considered to be the death of the last individual of the species, without descendants. In a sexually breed species, when a species has only one individual, or only one sex individual, then the extinction of this species is unavoidable. In the geological age, extinction is a common event, the species through the formation of species and appear through the extinction and disappear. Species extinction in the early days is not a universally accepted concept. At present, many environmental groups and governments are concerned about the extinction of species caused by human intervention. Possible extinctions include pollution, destruction of habitat, introduction of new predators. Endangered species refers to the presence of extinct species. Field extinction is used to describe individuals that have no wild state, only the species of human species that captures individuals. ...