Let em fuck then the child might be a giraffe

Thats some illegal shit bro/gal but if u really want to know its impossible. Like it has to be done when the rat is in cell stage but then rasu u couldnt find a giraffes features in a rat DNA so u have to use CRISP to add it to the mf poor creature but impossible. Its possible to add a feature but to trans mutate to a whole new species not wise

Did u mean transmute.. if so have u ever done that before to anything