bedbug-臭虫buffalo-水牛bull-公牛bullfrog-牛蛙bumblebee-黄蜂butterfly-蝴蝶chub-鲢鱼crucian-鲫鱼cuckoo-杜鹃cuttloefish-乌贼dormouse-睡鼠duck-鸭子grouse-松鸡guanaco-原驼hippop...