- A bird in the hand is worth two in the bush
- A barking dog never bites
- A cat may look at a king
- A dog is a man's best friend
- A dog's breakfast
- A dog's dinner
- A fish out of water
- A fish rots from the head down
- A fly in the ointment
- A leopard cannot change its spots
- A little bird told me
- A nest of vipers
- A pig in a poke
- A red rag to a bull
- A white elephant
- A wild goose chase
- A wolf in sheep's clothing
- A woman needs a man like a fish needs a bicycle
- Act the giddy goat
- An albatross around one's neck
- As bald as a coot
- As busy as a bee
- As cute as a bug's ear
- As dead as a dodo
- As fine as frog's hair
- As fit as a butcher's dog
- As happy as a clam
- As mad as a hatter
- As mad as a March hare
- As sick as a parrot
- As snug as a bug in a rug
- As the crow flies
- At one fell swoop
- Badgered to death
- Barking mad
- Barking up the wrong tree
- Bats in the belfry
- Beast with two backs
- Bee in your bonnet
- Beetle-browed
- Bell the cat
- Big fleas have little fleas upon their back to bite 'em
- Birds of a feather flock together
- Black sheep of the family
- Brass monkey weather
- Bunny boiler
- Canterbury pace
- Cat burglar
- Cat got your tongue?
- Cat's Cradle
- Cat's pajamas
- Chew the cud
- Chickens come home to roost
- Cold enough to freeze the balls off a brass monkey
- Cold turkey
- Counting sheep
- Crocodile tears
- Cry havoc and let slip the dogs of war
- Curiosity killed the cat
- Dark horse
- Dead cat bounce
- Dog's breakfast
- Dog's dinner
- Donkey work
- Don't change horses in midstream
- Don't count your chickens before they are hatched
- Don't keep a dog and bark yourself
- Don't look a gift horse in the mouth
- Don't shut the stable door after the horse has bolted
- Drink like a fish
- Dropping like flies
- Ducks and drakes
- Elephant in the room
- Even a worm will turn
- Eye of newt and toe of frog, wool of bat and tongue of dog
- Flogging a dead horse
- Fly on the wall
- Get off your high horse
- Gee-up
- Get your goat
- Giddy goat
- Ginger up
- Give a man a fish and you will feed him for a day
- Go the whole hog
- Go to the dogs
- Green eyed monster
- Grinning like a Cheshire cat
- Guinea pig
- Hair of the dog that bit you
- Halcyon days
- Hark, hark! the lark at heaven's gate sings
- Has the cat got your tongue?
- Hobby-horse
- Hold your horses
- Horse and cart
- Horse feathers
- How now brown cow?
- How sharper than a serpent's tooth it is to have a thankless child
- Hush puppies
- I see you stand like greyhounds in the slips
- If wishes were horses, beggars would ride
- In a pig's eye
- In the doghouse
- Jump the shark
- Kangaroo court
- Kettle of fish
- Lamb to the slaughter
- Lame duck
- Let the cat out of the bag
- Like a chicken with its head cut off
- Like a moth to a flame
- Like being savaged by a dead sheep
- Lions led by donkeys
- Mackerel sky
- Mad dogs and Englishmen go out in the midday sun
- Make a bee-line for
- Make a pig's ear of
- Make an ass of yourself
- Mare's nest
- Music has charms to sooth the savage beast/breast
- Mutton dressed as lamb
- Neither fish nor flesh, nor good red herring
- Never look a gift horse in the mouth
- Nice kettle of fish
- Night owl
- No room to swing a cat
- Not a dicky-bird
- On the pig's back
- One swallow doesn't make a summer
- Paper tiger
- Pearls before swine
- Pecking order
- Pig and whistle
- Pigeon-chested
- Pig's ear
- Pigs might fly
- Play ducks and drakes
- Play the giddy goat
- Pond life
- Pony and trap
- Pony up
- Pop goes the weasel
- Pretty kettle of fish
- Put the cart before the horse
- Rabbit and pork
- Rag, tag and bobtail
- Raining cats and dogs
- Rat-arsed
- Red herring
- Red in tooth and claw
- Ride a cock-horse to Banbury Cross
- Road apples
- Sacred cow
- See a man about a dog
- Separate the sheep from the goats
- Shaggy dog story
- Shanks' mare/shanks' pony
- Spelling-bee
- Stone the crows
- Stool pigeon
- Straight from the horse's mouth
- Strain at the leash
- Swan song
- The ants are my friends, they're blowing in the wind
- The bee's knees
- The best laid schemes of mice and men
- The birds and the bees
- The chickens come home to roost
- The early bird catches the worm
- The elephant in the room
- The fly in the ointment
- The hair of the dog that bit you
- The mutt's nuts
- The tail wagging the dog
- There is more than one way to kill a cat
- They couldn't hit an elephant at this distance
- Till the cows come home
- Top dog
- Turkeys voting for Christmas
- Wave a red rag to a bull
- Weasel words
- When pigs fly
- Where the bee sucks, there suck I
- White elephant
- Wild goose chase
- You can lead a horse to water but you can't make it drink
- You can't hold with the hare and run with the hounds
- You can't make a silk purse out of a sow's ear
- You can't run with the hare and hunt with the hounds
- You can't teach an old dog new tricks