In essence, what we've done is we've studied the science, we've looked at the behavior, we've seen over 2,000 kills by these amazing animals.
实质上，我们一直在做的事情包括： 研究这门自然科学，观察（动物的）行为， 并目睹了超过2000次 由这些神奇的动物施行的猎杀。