- While still in mother's womb, seven month old babies can open their eyes and follow light.
- Tuesday and Wednesday are two days of the week with the highest birth rate in the US.
- Top three months with the highest birth rate in the US are: August, September, and July.
- Babies born in May weigh 200 grams more than babies born in any other month.
- During first three months, babies can focus on objects only one feet away. This is roughly a distance to the mother's face, while a baby is nursing.
- Most babies will have blue eyes at birth. Permanent eye color develops later.
- Sometimes around 10 weeks after being born, a baby will "decide" if she is left or right handed.
- During the first year, baby's brain will double in size. It will double once again after year one.
- Adults have 206 bones, while newborns babies have 300 bones. Baby bones later on fuse into each other driving the total number of bones over time towards adult's 206 bones.
- Babies have almost 10,000 taste buds, which is significantly more than in adults.
- Only 20% of babies are born without any birth marks.
- Baby's head is 25% of its body length, while adult's head is only 12.5% of his or her length.
- Baby's brain is 10% of its total body weight, while adult's brain is only 2% of his body weight.
- The only organ that is fully developed at birth is baby's inner ear.
- Only ten minutes after being born, a baby can detect from where a sound is coming from.
- Babies can recognize their mother's voice on the first day they are born.
- Blind babies smile, so it is clear that smiling is not a copied function; babies are born to smile.
- Babies might not be able to produce tears up to first five months of their life.
- Babies can not taste salt until they are 4 months old, which is in line with kidney development.
- Newborn's stomach can hold only 3 oz of liquid.
- When they are born, their vision is 400/20. After only six months, baby's vision is usually 20/20.
- Newborn's eye is 75% of its adult size.
- Newborn babies are not color blind. They prefer strong primary colors, such as red and blue.
- Newborn babies usually urinate every 20 minutes.
- If a human would continue to grow at the first year's growth rate, he or she would be 25 feet tall.
- Babies kneecaps will fully develop full six months after the birth.
- Newborn's heartbeat is usually twice of a normal adult.
- Teething in babies can start as early as 3 months.
- On average, a baby in the US will go through 7,500 diaper per year.
- On average, women change a diaper in 2 minutes, while men complete the job in 1.25 minutes.
- Every three second, a baby is born somewhere in the world.
