Ah, ok. Hm, I do not see these as baby rabbits. I think those are dwarf rabbits and the other ones are bunnies (which are different species). Anyway I use both animal types as rabbits because we have two small ones (real dwarf rabbits) and four mixed (dwarf) rabbits for which I use the bunny type because they are bigger. So the idea was just to have even smaller ones as baby rabbits than the one depicted.
(Nice reference with the Little Jo figure
; from Animobil, right)
