<span>but after swimming for a while, the water feels fine. A friend asks you how the water is, and you tell her the “water’s great.” She jumps in and then accuses you of lying because the water is freezing. You really were not lying. It is just that you experienced</span>
Environmental scientists are using GPS ( It is effective but expensive) aerial monitoring (Quick but not the easiest), RFID tags, (mostly for long-term monitoring) and hidden cameras are used to study polar bear behavior without interruption to their environment.
Slightly movable is the answer