Regardless of the baby's initial suckling behavior, this interaction stimulates uterine contractions, promotes colonization of harmless bacteria on the nipple, and helps to protect the infant from pathogenic bacteria.
The baby may have difficulty getting enough nutrition as breathing and suckling simultaneously may be impossible if breaths are too rapid and laborious.
Prolactin levels rise and fall in direct proportion to the frequency, intensity, and duration of nipple stimulation from the infant's suckling.
Gradually Matthew's suckling slowed and he fell asleep.
It is the well-known peculiarity of this order that the female has a pouch or fold of skin upon her abdomen, in which she can place the young for suckling within reach of her teats.