Oksana Baltakiene, in Estepona, Spain, owns a bald guinea pig and several Sphyx cats, which lack hair. Oksana adopted the bald guinea pig, named Luis, thinking it would fit in perfectly with a family of hairless cats.

Now the cats have adopted Luis and treat him like a brother. If guinea pigs and cats can get along so well, what’s the excuse that humans have for fighting with each other all the time?

To learn more about the cats who adopted a guinea pig, click here.