they arent fat. they are just furry. pikachu came from a pika which is a rat or mouse in japan. but yah i still think pikachu. they are about the size of your palm. about 1.5 lbs. very nice. they came from the andies mtns in peru. they like cold not so humid climate. sometimes can be hard to take care of them in atl. but they do shit alot but they have shit pelets not like dog poo. and they dont stink that is another crazy thing about them.