As long as you grasp it on your hand, your body will bend up, and the thorns of your body (especially the thorns of your body)

As long as you grasp it on your hand, your body will bend and your thorns (especially those on the gill cover) will stand up. This self-defense way is a bit beautiful. The eyeballs of the snapper in Fig. 3 don’t know what’s wrong. It may have been injured.Australia