Ecogeographic rule Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “Foster's rule (also known as the island rule) is a principle in evolutionary biology stating... Foster's rule Pages in category "Ecogeographic rule" This category contains only the following page. F Foster's rule Retrieved from "http://psychology.wikia.com/wiki/Category:Ecogeographic_rule"