These #fish can tell when you’re staring https://www.scientificamerican.com/article/these-fish-know-when-youre-watching-them/

Emperor #cichlids can perceive attention towards their offspring by divers https://royalsocietypublishing.org/rsos/article/13/3/251919/480967/Watching-the-watchers-emperor-cichlids-can

"#Animals are so sensitive to eyelike stimuli that we would expect them to find the gaze threatening or scary if it was directed at them. The study goes a step further by showing that the fish might be able to track where the diver is looking at. It’s not just a reflexive response to eyes being straight at them"