[ One day when it freaks him out a little less, he will have to look into what talking fish really sound like. Usopp will keep things appropriately dramatic either way. ]

It was a disease caused by terrible loneliness. He got separated from his family a long time ago, but the tides were only high enough to leave that part of the ocean once every ten years or so. The disease could have been prevented, but other sailors were too afraid of his enormous size to try to talk to him before I came along!