它也说明了一个基本的生态学原理：自从达尔文时代以来，科学家们已经注意到，岛屿常常是过大兽类和微型兽类的家园。
It also illustrates a fundamental ecological principle: Since Darwin's days, scientists have noticed that islands often are home to both oversized and miniaturized beasts.
达尔文在《物种起源》中给进化提出了令人信服的证据，并且自从他的时代以来，情况已经变得势不可挡。
Darwin presented compelling evidence for evolution in on the Origin and, since his time, the case has become overwhelming.
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