英语翻译Foster's rule (also known as the island rule) is a princ

英语翻译
Foster's rule (also known as the island rule) is a principle in evolutionary biology stating that members of a species get smaller or bigger depending on the resources available in the environment.This is the core of the study of island biogeography.For example,it is known that pygmy mammoths evolved from normal mammoths on small islands.Similar evolutionary paths have been observed in elephants,hippopotamuses,boas,deer,and humans.