We usually think of evolution as something that happens over eons, in remote places where people rarely venture. Not something that happens around the backyard birdfeeder in just a few decades.
在我们的通常印象中，物种进化需要经历长久的时间，且发生在人迹罕至的地方，似乎跟在自家后院喂了几十年野鸟八这种事竿子打不着。
We usually think of evolution as something that happens over eons, in remote places where people rarely venture. Not something that happens around the backyard birdfeeder in just a few decades.
在我们的通常印象中，物种进化需要经历长久的时间，且发生在人迹罕至的地方，似乎跟在自家后院喂了几十年野鸟八这种事竿子打不着。
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