(提示：如果您无法正常打开上面的节目，主要原因可能是您没有安装Windows Media Player和Realplayer 。如果您还没有安装，请点击此处下载安装)
听力文稿 ( Transcript )
What makes this toothless jawbone which has lain here for 200,000 years unique is that this person must have been fed soft or pre-chewed food for weeks on end, allowing time for new bone to form over the empty sockets. And that kindness saved this person’s life.
We humans alone have evolved this remarkable instinct to help others more vulnerable than ourselves.
Here in Canada, that instinct to help others was put to the ultimate test when a mother was called upon to protect her son. Steven Paroline is lucky to be alive. Six years ago, he set off on a camping trip into the remote mountain forest with his brother, his mother and sister Molisa.
Oh, it's pretty exciting, in the morning I felt a bit nervous and like something bad was gonna happen or, something, but I kinda shoved this sign and I was feeling pretty happy when we got going.
They had almost reached the campsite when without warning, the horses began to snort and rear, something was wrong.
I saw its head poke out of the trees, on the left side of me and I thought oh it was just a coyote, and then it came on, it’s kind of, they have very slick movements. And it just kinda like glided out and I kinda looked around, that’s not a coyote.
In fact, it was a cougar, a mountain lion capable of killing prey twice its size. The cougar went straight for Steven, it didn't even look at the rest of us, it just went directly toward Steven. (It) set its paws right on the saddle, huge eyes, seeing and staring at me you know.
Face to face with death, six-year-old Steven didn’t stand a chance.
Steven kinda fell off, and then as he was standing up the cougar, hm, it reached on his head like this with its paws and just ripped open his head.
Seeing her son in terrible danger, his mother Cindy reacted without hesitation. With a primal scream, she launched herself at the cougar to fight for her son.
It was just like instinct you know, I guess she figured that she'd be ok or, she didn't really think about it was just a reaction to what was happening.
页面导航： 
