- 1. I think it has evolved.
- 我认为它已经进化了。
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- 2. At this point the subpopulations have evolved into distinct species.
- 这时，亚种群已经进化成不同的物种。
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- 3. We evolved the ability to sweat plentifully, and lost most of our fur.
- 我们进化出了大量出汗的能力，并且失去了大部分的皮毛。
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- 4. Later ancestors still evolved back into the water and became sea turtles.
- 后来的祖先仍然进化回水中，变成了海龟。
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- 5. This ancestral species might have evolved at a time when the islands were connected.
- 这种祖先物种可能是在岛屿相连的时候进化而来的。
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- 6. That may be a hint that yawn evolved as a social cue—"time for us all to go to bed".
- 也许这是打哈欠进化为社交线索的一种暗示——“到我们大家睡觉的时间了”。
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- 7. Jealousy and anger, for example, may have evolved to alert us to important inequalities.
- 例如,嫉妒和愤怒可以演变为警醒,让我们察觉出极其不平等的现象。
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- 8. Sasaki knew the first-night effect probably has something to do with how humans evolved.
- 佐佐木知道，初夜效应可能与人类的进化有关。
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- 9. Facebook, which is what this website rapidly evolved into, ended up connecting the world.
- 正是由这一网站迅速演变而成的Facebook，最终连接了整个世界。
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- 10. This method provided a readout for how home energy use has evolved since the early 1990s.
- 这种方法向我们展示了自20世纪90年代初以来家庭能源使用情况的演变数据。
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- 11. It's probably a kind of tree from which other trees that grow in Australia today evolved.
- 它可能是一种树，今天在澳大利亚生长的其他树就是从它进化而来的。
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- 12. Wild carrots probably evolved with the other flowering plants about 360 million years ago.
- 在大约3.6亿年前，野生胡萝卜也许是和其它开花植物一起进化的。
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- 13. In several cases, scientists can see how complex carnivorous plants evolved from simpler ones.
- 在一些案例中，科学家可以看到复杂的食肉植物是如何从简单的植物进化而来的。
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- 14. Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees.
- 和棕熊和北极熊一样，树懒熊可能是在树木稀少的环境中进化而来的。
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- 15. Primates and birds' brains have evolved along different tracks, but ended up with similar abilities.
- 灵长类动物和鸟类的大脑沿着不同的轨迹进化，但最终拥有相似的能力。
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- 16. From a psychological point, animals have evolved to be nice to their kin, particularly their children.
- 从心理学的角度来看，动物已经进化得对它们的同类很好，尤其是它们的孩子。
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- 17. As feathers became larger over time, flapping flight evolved and birds finally became fully air-borne.
- 随着时间的推移，羽毛变得越来越大，扑翼飞行逐渐发展，鸟类最终完全可以在空中飞行。
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- 18. If the toco toucan had evolved in chilly Ireland, its impressive bill would have been much more modest.
- 如果托哥巨嘴鸟是在寒冷的爱尔兰进化而来的，它那令人印象深刻的喙部就会比现在小得多了。
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- 19. Traditional marriage has evolved from a near-universal ritual to a luxury for the educated and affluent.
- 传统婚姻已经从一种近乎普遍的仪式演变为受过良好教育和富裕阶层的奢侈品。
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- 20. As schools have changed in the past century, the midday meal container has evolved right along with them.
- 在过去的一个世纪里，午餐盒的样式随着着学校的演变而改变。
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- 21. For today, let's look at a reptile, a predator that hasn't evolved much in the last seventy million years.
- 今天，让我们来看看一种爬行动物，一种在过去七千万年里没有进化很多的食肉动物。
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- 22. The researchers found that venom evolved before snakes even existed, about a hundred million years before.
- 研究人员发现毒液甚至在蛇出现之前就已经进化出来了，大约在一亿年前。
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- 23. This behavior may have evolved as dogs gradually learned they could benefit from avoiding conflicts with humans.
- 狗逐渐认识到避免与人类发生冲突是有益的，所以可能会逐步形成这种行为。
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- 24. One family of completely harmless snakes, the kingsnake, has also evolved serum that neutralizes rattlesnake venom.
- 一种完全无毒的蛇家族，王蛇，也进化出了能中和响尾蛇毒液的血清。
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- 25. Large animals that inhabit the desert have evolved a number of adaptations for reducing the effects of extreme heat.
- 生活在沙漠中的大型动物已经进化出许多适应能力，以减少极端高温的影响。
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- 26. Although many lines of evidence indicate that birds evolved from ground-dwelling theropod dinosaurs, some scientists remain unconvinced.
- 尽管有许多证据表明鸟类是从陆生兽脚亚目恐龙进化而来的，但一些科学家仍然表示怀疑。
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- 27. The dolphin has evolved a highly developed jaw.
- 海豚已经进化形成高度发达的下颌。
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- 28. Birds are widely believed to have evolved from dinosaurs.
- 鸟类普遍被认为是从恐龙进化而来的。
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- 29. The idea evolved from a drawing I discovered in the attic.
- 这种想法是从我在阁楼里发现的一幅画得到启发的。
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- 30. The company has evolved into a major chemical manufacturer.
- 这家公司已逐步发展成一个主要的化工厂。
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