Baby Biology
Because their stomachs are only about the size of a marble at birth, newborns must perform this activity every 2 to 3 hours.
Eating
Despite their reputation for being loud, newborns can't actually produce these until they are about 3 to 12 weeks old.
Tears
This essential feeding tool, often made of plastic or glass, is designed to deliver milk and is usually the first "dish" a baby ever uses.
Bottle
Many new parents experience the "phantom" version of this, where they think they hear it even when the house is completely silent.
baby cry
Found in adults but missing in infants, these protective bones are actually made of cartilage in babies to help them squeeze through the birth canal.
kneecaps
While adults often need GPS, a newborn can find their "food source" using only this sense, which is the most highly developed sense they have at birth.
smell
This rubber or silicone object is used to satisfy a baby’s natural sucking instinct between feedings.
Pacifier
Often given a nickname like "Mom Brain," this occurs as many new parents feel due to sleep deprivation and hormonal shifts.
forgetfullness / amnesia
While an adult human body settles at a total of 206, a newborn starts life with approximately this many bones.
300
Newborns are born with 30,000 taste buds (even on their cheeks!), but they are actually "blind" to this specific taste until they are about 4 months old.
Salt
Because newborns can’t see colors well, many of their first toys and books are printed exclusively in these two high-contrast colors.
Black and White
During pregnancy, a father-to-be could experience these two physical symptoms alongside his partner.
weight gain and morning sickness
Evolution allows infants to perform these two biological functions simultaneously until about 6 months of age, a feat most adults find physically impossible.
breathing and swallowing
In their first few months, babies have the "superpower" to hear and distinguish between all of these, even those not used by their parents.
languages
Holding the title of the world's best-selling baby brand, these two companyies have become almost synonymous with disposable diapers.
Pampers and Huggies
Research shows that in the first year of a baby's life, new parents lose an average of this many hours of sleep per night.
3 hours
In a process called microchimerism, these tiny units of life from the fetus can migrate into the mother's body and remain in her organs for decades.
fetal cells 胎兒細胞
A newborn spends roughly this many hours out of every 24 in a state of sleep, though usually in very short bursts.
14-17 hours
This electronic device produces a constant, steady sound that mimics the rushing noise of the womb to help infants sleep.
White noise machine
Within days of birth, a mother's brain becomes uniquely tuned to her baby, allowing her to identify her own child's cry among a group with nearly this percentage of accuracy.
100%