system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
At what age can babies roll over?
gpt
Babies typically can roll from stomach to back around two to four months of age and from back to stomach by about six months. If a baby is not turning over in either direction by six months, that could indicate a developmental delay or other issue. Signs that a baby is about to roll include: lifting their head and shoulders during tummy time, rolling onto their side, and kicking or scooting while on their back.