“Cuy” is a dish. It seems cuy can sometimes include a broader class of rodent, but guinea pig (Cavia porcellus) is definitely one of them. They eat guinea pigs in the Andes. They were originally domesticated there to be food.
Originally, guinea pigs were domesticated as livestock for their meat, in the Andean region of South America, and they are still consumed there.
– https://en.wikipedia.org/wiki/Guinea_pig
So I don’t know where you’re getting that they’re different, or that they don’t eat guinea pigs.
and cuy are not guinea pigs.
Every search result I’ve found says they are guinea pigs.
https://www.eatperu.com/eating-cuy-guinea-pig-peruvian-delicacy/
“Cuy” is a dish. It seems cuy can sometimes include a broader class of rodent, but guinea pig (Cavia porcellus) is definitely one of them. They eat guinea pigs in the Andes. They were originally domesticated there to be food.
So I don’t know where you’re getting that they’re different, or that they don’t eat guinea pigs.