Definition for Sucking reflex
From Biology Forums Dictionary
The sucking reflex is probably one of the most important reflexes your newborn has, especially when you pair it with the rooting reflex. If you touch the roof of your baby’s mouth with your finger, a pacifier or a nipple, he will instinctively begin sucking. Around 2 to 3 months of age, your baby’s sucking will be a result of conscious effort and no longer a reflex.
Be aware that every time your baby exhibits this reflex, it doesn’t necessarily mean that he’s hungry. Sucking is a soothing, enjoyable activity for your baby all by itself.
