animal 动物bat 蝙蝠butterfly 蝴蝶bird 鸟bear 熊camel 骆驼cat 猫cage 笼子dinosaur 恐龙chicken 小鸡dolphin 海豚extinct 灭绝的cow 奶牛fly 苍蝇fur 皮毛crocodile 鳄鱼jungle 丛林insect 昆虫dog 狗kangaroo 袋鼠nest 鸟窝duck 鸭子kitten 小猫octopus 章鱼el...