New Type of Pet

Encountered a pet that I had never seen before at Petco. Can you guess what they are? Hint: They are very quick (my first 4 pictures were blurry) and very curious and very friendly. They like to snack from their hay bag.

These "Skinny pigs" (marketing name) are mostly hairless guinea pigs. Their unique appearance is the result of a spontaneous genetic mutation among a group of lab guinea pigs.
The herd that I saw at Petco seemed to be so much livelier and people oriented than the more familiar guinea pigs with hair housed beside them. Don't know if this is a trait of the skinny pigs or just of this particular group but they were darn cute.