Why crows and similar species are so closely attuned to humans is a matter of debate.

乌鸦和近似物种为什么能与人类和谐共处？

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His team has detailed the discovery of a similar species, Xiaotingia, which dates back 155 million years to the Jurassic Period.

他的团队已经把对一个相似的物种“郑氏晓廷鸟”的发现作了细节化处理。“郑氏晓廷鸟”的出现要追溯到1亿5500千万年前的侏罗纪时期。

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This would explain why the human genome has no trace of Neanderthal DNA despite the two similar species living close together for millennia.

这可能解释为什么人类的基因组没有尼安得特人的痕迹，即便这两个物种在一起生活了几千年。

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Darwin noted that all these species were similar to those found in South America.

VOA: special.2009.02.25

Student: My question's not exactly like that one, but in other animals do they is there similar ? data on other species?

我的问题跟刚刚那个不太一样，其他物种,他们会否,其他物种是否有类似的情况？

耶鲁公开课 - 心理学导论课程节选

Comparing Gaikai to Steam is like comparing a Lion to a Tiger, in that they are a similar species.

FORBES: Sony To Acquire Cloud Gaming Startup Gaikai For $380 Million

Other species of Myrmarachne have similar exclusive relationships with ant species in both countries.

ECONOMIST: Insects and mimicry

Hailing from Siberia's Denisova Cave, the girl was from an ancient human sub-species similar to the Neanderthals.

ENGADGET: Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life