In the recent article, “ Animal World If Humans Never Existed” by Aarhus University, in current studies, researchers investigate what the world's natural diversity patterns of mammals would be like without the past and present human impacts, based on estimates of the natural distribution of each species according to its ecology. New studies present what the world would look like if humans never existed. In most places, there is a very large shortage in mammal diversity relative to what it would naturally have been. The current world map of mammal diversity shows that Africa is the only place with a high diversity of large mammals. Africa has the most large mammals because it's one of the places that is less developed and human activities have
