知识贝壳
知识贝壳
所属栏目：英汉双解生物学
The gradual formationthrough evolution of a number of different va-rieties or species from a common ancestor,each adapted to a different ecological niche.A classic example of adaptive radiation is il-lustrated by Darwins finches. See alsoDarwins finches.从 ......（本文共 300 字 ） [阅读本文] >>