The body shapes of domesticated ducks and geese reflect to a large degree those of their ancestors. When Feng Zikai, who advocates protection for all living beings, fondly recalls one big white goose that someone once gave him to take care of, he can't help but make some comparisons that poke fun at ducks.
在家鴨與家鵝身上，也可以看到它們各自的老祖先有些什麼特點。提倡護生的豐子愷先生，懷念一隻人送的大白鵝，也不免稍稍「詆」了醜小鴨。