I study wildlife biology and I met a professor.

我学习野生动物生物学，遇到了一位教授。

They then compared those data to the estimates they made with traditional wildlife biology tactics: camera traps, track surveys, and " call-in stations" —where they play sounds of distressed animals in the middle of the night and see who pops by.

然后，他们将这些数据与他们使用传统野生动物生物学策略做出的估计进行了比较：相机陷阱、跟踪调查和“呼叫站”——他们在半夜播放痛苦动物的声音， 看看谁突然经过。