I'd set up the experiment near bird feeder and get in as much observation time as you can.
我会在喂鸟器附近进行实验,并获得尽可能多的观察时间。
剑雅真题-阅读
A further argument against the simple wear and tear theory is the observation that the time within which organisms age lies between a few days (even a few hours for unicellular organisms) and several thousand years, as with mammoth trees.