Hi there,
To further explain, CS pets are more like collectables than breedable pets. Each one is hand drawn by one of our artists! Sometimes staff will choose to pair, or "breed," certain pets, combining their designs to make offspring. These are called 2nd generation pets! They are available for adoption most months, and sometimes during events too!
You can read more about them here:
https://wiki.chickensmoothie.com/2nd_gen_pets I hope this helps to explain!