In order to protect babies against rotavirus infections, a rotavirus vaccine is given between 6 weeks and 10 weeks of age.

A baby, up to the age of seven months, can breathe as well as swallow simultaneously, which is not possible for adults to do.

There are many more neurons in a baby’s brain at birth than in an average adult. However, the head of a baby is usually a quarter of the size of the rest of her body.

By the end of three months, a baby can recognize the red color at its longest wavelength. By the time it reaches five months of age, a baby can see the full spectrum of color.

Sudden infant death syndrome (SIDS) is when a child of less than one year of age dies a sudden unexplained death. The cause of this condition is not yet known.

It is not that a baby does not have fingerprints when it’s born, but they are properly recognizable when a baby reaches six months of age.

The boys-to-girls birth ratio in humans is close to 1:1, but it is not 50%­–50%. The 'natural' boy-to-girl ratio at birth is around 105 boys per 100 girls (the average range is from 103 to 107 boys).

The umbilical cord joins the baby with the mother in the womb. It separates from the baby 1–2 weeks after birth.

Unlike adults, who have 206 bones, a baby has 300 bones at birth. Many of them join together during their formative years and become 206 bones.

Kneecaps in babies are present in the form of cartilage only. As the baby grows into an adult, the cartilage hardens up to form kneecaps.