Now, this is completely unprompted; she had never seen this done before. 要知道，它没有看到过别的乌鸦这么做。 No one taught her to bend this into a hook or had shown her how it could happen. 之前也没有任何人或者别的乌鸦教它如何把线弯成钩子；或者
As many of you know, early on Friday, at least twelve people were killed when a gunman opened fire at a movie heater in Aurora, Colorado. Dozens more are being treated for injuries at local hospitals.
And this is where my story starts. When I was a young researcher, doctoral student, 我的故事从这里开始。当我还是个年轻的博士研究生的时候， my first year, I had a research professor who said to us, "Here's the thing, if you cann
