I think creatus should be able to breed. Here is my idea how:
Everyone can breed 3 times a day (same as hatch eggs). To breed, they go to one of the pets they wish to breed and click 'Breed'. They then have to choose the second parent (must be opposite gender) and then click 'Breed' again. The egg should be produced in, let's say, 5 days and sent straight to the inventory to be hatched. The baby creatu will either be the same creatu as the mother or the father (it is simple random).
It is up to the admins if rare creatus can be bred.
So, guys, what do you think?