ECOZONES AND ENVIRONMENTS
From PPDM Wiki
An ecozone is a biogeographic division of the earth based on the historic and evolutionary distribution patterns of plants and animals. Ecozones represent areas of the earth's surface where plants and animals developed in relative isolation over long periods of time, and are separated from one another by geologic features, such as oceans, broad deserts, or high mountain ranges, that formed barriers to plant and animal migration. For more information visit http://en.wikipedia.org/wiki/Ecozone
