If it sounds like an interesting place to visit, that's because it is.
如果它听起来像是个有趣的地方,那是因为它的确是这样。
Thus one simple fact, a change in the number of bison, had an effect on the whole wildlife chain of the plains.
因此,出现了这样一个简单的事实--野牛数目换的变化对平原的整个野生生物链都产生了影响。