Baby responds to sounds in frequencies too high or low for adults to hear. Eyelash fringe appears. Weight is about 640g. Babies born at this age have survived. Eyelids open and close, eyes look around.
Hands grip strongly.
Mother's voice is recognized. Weight increases by 1Kg. Baby triggers labor and birth occurs, usually 255-275 days after conception. Inc. The milestones listed above have been documented by scientific research. Slight variations of hours or days may exist and future research may show that some milestones occur earlier than is now realized.