When placed between a gauze breast pad from its nursing mother's bra, week-old babies are likely to?

When the babies who are only a week-old are placed in between the gauze breast pad which is taken from the bra of their nursing mothers, the most likely situation is that the babies will turn their head toward the breast pad. The breast pad will remind them of the smell of their mother, and the babies will turn their heads towards it in an attempt to get closer.

Hence, the answer is 'turn their heads towards the breast pad of their mother's'.