1、bird
Birds of a feather flock together.物以類聚
Fine feathers make fine birds.人要衣裝，佛要金裝
A little bird told me that you win the prize.消息靈通人士告訴我你得了獎。
He is an old bird and you can’t take him in 他是個老練的人，你騙不了他。
A bird in hand worth two in the bush.一鳥在手勝過雙鳥在林。
The early bird gets the the worm.笨鳥先飛/捷足先登
Kill two birds with one stone.一舉兩得
2、dog
Love me ,love my dog.愛屋及烏
Beat the dog befote the lion.殺雞駭猴
An old dog will learn no new tricks.老頑固學不了新事物。
A good dog deserves a good bone.有功者受賞
cat- and- dog life.吵吵鬧鬧的生活
die like a dog.潦倒而死
dog days.三伏天
rain cat and dog.傾盆大雨
lead a dog’s life.過著潦倒的生活
treat someone like a dog.不把某人當人看
3、rat,cat,mouse
When the cat is away,the mice will play.山中無老虎，猴子稱霸王
like a rat in a hole.甕中之鱉
let the cat out of the bag.露馬腳
as poor as a church mouse.一貧如洗
In public affairs he remained a mouse.在公事上他膽小如鼠。
A cat may look at a king.地位雖不同，人權應平等。
4、tiger,lion
His father is a great lion here.他父親是這兒的一個名人。
The soldiers were tigers in fight.那些士兵英勇作戰。
5、其他動物
dark horse.能力深藏不露的
put the cart before the horse.本末倒置
Have a wolf by the ears. 騎虎難下，進退兩難
a big frog in the small pond小地方的大人物
parrot cry.人云亦云
fish in troubled watered.混水摸魚/趁火打劫
a snake in the grass.陰險而偽善的朋友
a wolf in sheep’s clothing.偽裝友善的人