By the way, before leaving this subject, I would like to add a few comments.
在结束这个问题之前顺便一提,我希望能再提出一些看法。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为,在1850年到1910年之间,野牛的头数从6,000万头降到只有几百头了。