某自然保护区内的野鸭，不会长途迁徙，常年集体活动，分类共栖，是一种十分温和友爱的动物，尤其是在本群内，雌雄间、老幼间从不发生争斗，往往是一只野鸭有难，全群齐来相助，哪怕为此断送了性命也在所不辞。野鸭知道自己生存的艰难，每孕育一枚蛋十分不易，每一枚蛋都得好 Wild ducks in a nature reserve do not migrate long distances. They are collective and perennial. They are classified as commensals. They are very gentle and friendly animals. Especially in this group, there is never a battle between male and female, old and young, and they are often one. Only ducks have difficulties, and all the groups come together to help each other, even if their lives are cut off. Wild ducks know that their survival is difficult. It is very difficult for every egg to be bred. Every egg is good.