"Another point is that these Transparent Fish communicate with each other through a psychic method, which works over short distances. However, due to their large numbers, the message spreads quickly from one to ten, and ten to a hundred, so it's quite efficient."
"Once they spot prey, they summon their companions through this method of communication. This behavior is somewhat similar to that of the big fish and sea beasts, but unlike them, Transparent Fish prefer to live in groups, not alone. They cooperate harmoniously in hunting without any infighting..."
"You were on the shore, continuously attacked by these Transparent Fish because after being attracted by the scent of the pigs jumping out of the water, they smelled your scent and kept calling more of their companions over..."