Any animal characteristics yaoi where everyone has a different animal characteristic?

I only know of a few that’s specifically what you’re asking for, sorry:
https://www.mangago.zone/read-manga/wagging_the_tail/
https://www.mangago.zone/read-manga/augs_law/ (shounen ai, but it cuts close to being yaoi and I highly recommend it!)

Yaoi w/ different animal characteristics but only a select few have them:
https://www.mangago.zone/read-manga/cold_blooded_beast/
https://www.mangago.zone/read-manga/the_sacred_serpent_s_seduction/
https://www.mangago.zone/read-manga/how_to_survive_as_a_player/
https://www.mangago.zone/read-manga/hungry_souls/

Yaoi w/ animal characteristics but not everyone has them and there’s only one-two types of animal amongst people:
https://www.mangago.zone/read-manga/wolf_in_the_house/
https://www.mangago.zone/read-manga/when_the_full_moon_rises/
https://www.mangago.zone/read-manga/kedamono_arashi/
https://www.mangago.zone/read-manga/dear_my_destiny/
https://www.mangago.zone/read-manga/addiction/
https://www.mangago.zone/read-manga/his_little_amber/
https://www.mangago.zone/read-manga/don_t_press_the_button/
https://www.mangago.zone/read-manga/nokemono_domoni_shukufuku_wo/
https://www.mangago.zone/read-manga/blood_link/
https://www.mangago.zone/read-manga/moonlight_howling/

Don't Mess with the Puppy

https://www.mangago.zone/read-manga/don_t_mess_with_the_puppy/