The guinea pig breeds year-round with a long gestation period of 59–72 days, permitting easy differentiation between stages of prenatal development. Unlike the offspring of most other rodents ...

In the past year, the Marin Humane Society has seen an increase in a new breed of guinea pig. Cuy criollos mejorados are being introduced into pet stores throughout the country. More commonly ...

Peru Celebrates 2 Decades of a Fast-Growing Breed of Guinea Pigs Eaten as a Delicacy LIMA, Peru (AP) — Peru on Thursday celebrated two decades since the creation of a genetically modified breed ...