Narrator: Crows have become highly skilled at making a living in these new urban environments.
旁述：现在，大城市里的乌鸦变得越来越适应城市的生存环境了。
As urban environments become ever more complicated and interconnected, they present us with new opportunities to study how they work - and to make them better places to live in.
由于城市环境变得更加错综复杂，这就要求我们用新的方法去研究城市怎么能更好的运转——让城市变得更加适合人们居住。
Scientists say this new evidence is the first to show that brain size is a key factor for animals' survival in urban environments.
科学家说这个新的证据首次表明脑袋尺寸是影响动物在城市环境中生存的关键因子。
Creating healthy and stimulating environments for children and teenagers becomes essential for new urban settings.
对儿童和青少年提供健康和具有促进作用的环境已成为新城市建设的必要部分。
Creating healthy and stimulating environments for children and teenagers becomes essential for new urban settings.
对儿童和青少年提供健康和具有促进作用的环境已成为新城市建设的必要部分。
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