The 'Rex' is a gentle, playful and intelligent breed of rabbit for all those looking for a lovable, low maintenance pet. Yes, they do eat a lot and they are most definitely messy. But, at least, they can be potty-trained more easily than others. (Phew, I was about to stop writing further when I typed in the word 'messy'). If it is a rabbit that you want, Rex is the perfect breed for all.