An orca whale (well, technically it's from the dolphin family, actually). Drawn in Inkscape 逆戟鲸 海豚 虎鲸 逆戟鲸
My tribute to (the name of) the boat, featured in the movie/film âJawsâ â âORCAâ 船 引导 电影 逆戟鲸 (大白鲨)