english: You essentially separate the litter, the babies of this rat, at birth, to two kinds of fostering mothers -- not the real mothers, but mothers that will take care of them: high-licking mothers and low-licking mothers.
non_english: U suštini razdvojite leglo, mlade ovog pacova po rođenju, kod dve vrste majki starateljki - ne stvarnih majki, već majki koje će o njima da brinu: majki koje često ližu majki koje retko ližu.