They'll gnaw on things or do other things that may also soothe them, even if they're self-destructive, which could be considered similar to the ways that some humans cut themselves.
物を噛むとか 気持ちが落ち着くことをします 人間の自傷行為に 類似する行為です 人間の自傷行為に 類似する行為です 人間の自傷行為に 類似する行為です