In USA pigs = police

Most I can think of at the moment are derogatory.

A "dog" is a person pushing their horniness to inappropriate levels.

A "cow" is someone fat and slow/stupid.

A "shark" is a savvy business person who edges into taking advantage of people unethically.

A "snake" is a liar and a cheat. Sometimes slang for a penis.

Quiet, shy people are "mousy".

Someone who tattles to cops/authority is a "rat".

A "chick" is an old-timey term for a girl/woman that might get you slapped.

A "kitty" is a vagina and also may get you slapped depending on context.

Someone messy/dirty is a "pig". "Pig" might also be used for a man who is rude and pushing sexual innuendos onto women without their consent.

While to "go the whole hog" means to not hild back, to embrace doing a thing completely.

In english that’s a “fox”

Cougar.

It's either a type of big cat, or an older, attractive, single woman.

Someone who is a snake can't be trusted.

Of course the word bitch, a female dog.

monkey = not attractive, can also be foolish

gorilla = swole, ripped

crocodile = greedy

worm = of low social status

turtle = slow

cockroach = hard to kill

fox is older term for a good looking female. also a vixen is a term for a suductress.

Cougar, older women attracted to younger men.

A chicken hawk is an older gay man who pursuits younger men.

uhh, « manger comme un cochon » is to eat like a pig. more idioms but i speak english better. « malin comme un singe » is to be very clever (« as a monkey »)

i’ve heard « serpent » for backstabber, or serpan since i’m learning haitian creole

Mongoose: humorous term for a man who is successful in social situations (for example with women).

Monkey: Clever or competent person, usually used when someone accomplishes something unexpected with a nuance of "how did you even do that".

Chick: Slang for boyfriend.

In Norwegian, Grouse (Rype. Don't bother trying, you're definitely pronouncing it incorrectly) somehow became slang for an attractive woman. Not used that often anymore, though.

Caged owl (Burugle) is slang for an unattractive woman.

In Spanish, gato is not necessarily attractive (though they usually are) but a cheap sex worker or a promiscuous seductress/tor.

Potro (colt) is an attractive young man
Yegua (mare) equivalent to bitch, an asshole woman
Vaca (cow) same as in English, could be used for someone overweight or dumb
Cerdo (pig) same as English, a filthy/fat person

Marmota and burro (marmot and donkey resp.) someone dumb

Vibora, buitre (snake, vulture resp.) toxic person
Sapo, bicho (frog, bug resp.) someone ugly
Mariposa (butterfly) allegedly or suspected to be gay

Those are the first ones to pop into my mind but I'm sure there's more

"Chatte" (female cat) is the equivalent of pussy in english.

"Poulet" (chicken) is a cop. "Poulette" (hen) is a rather disrespectful word for a women.

"Gorille" (gorilla) is a tall muscular person.

"Cochon" (pig) is someone filthy, especially in the sexual sense. (can be used as an adjective, "films cochons" are porn films).

"Canard" (duck) can be a newspaper, or a mistake when playing music.

"Levrette" (female greyhound) is the name for the doggy style sexual position.

"Vache" (cow) can be either someone mean, either a cop. The second case is rarely used except in the sentence "Mort aux vaches" (death to the cops) and probably comes from the Wache germanic root for Guardian, rather than the actual animal.

In Italy "uccello" (bird) means penis in a very unformal context, usually used with friends. In Tuscany, for the regional ones, we have "Topa" (female of the mouse) to indicate a very pretty girl, also very unformal and a bit rude. Same translation for "passera" (female of the sparrow). Both can also indicate the literal female reproductive organe. "Gatta morta" (dead female cat) means somebody who acts ingenous or hide her personality under a chill, almost naif mask to act at the opportune moment.

Bird is slang for woman in the UK and in the Midlands duck is a slang for when you're talking to anyone

"Bird" is old-time slang for a woman, usually understood to be pretty.

In some Spanish-speaking regions, a goat is usually like a big dumb guy. And calling someone a horse is another way of saying they’re stupid.

Catalan has sheep to mean slut. Woodworm for somebody that pesters or annoys insistently. Ferret for a sly person. A rat, contrary to other languages where it's a traitor, is more used for stingy people.

In the USA, "cat" can mean just any person, a woman, or vagina (an alternative to the more vulgar term that used to mean cat).