It may be a strange title but most of the time, I forget these three are members of the order of Rodentia, the single largest group of mammals. They are characterized by a single pair of continuously growing incisors in both the upper & lower jaws.
That being said, when you think of rodents, you don't think cute or even adorable. But hopefully that opinion will change seeing the following group of photos.
Beaver (North American)
PHOTO #1 (Taken July 2021)
PHOTO #2
PHOTO #3
Porcupine (North American)
PHOTO #4
PHOTO #5
PHOTO #6
Muskrat
PHOTO #7
PHOTO #8
PHOTO #9