In general, exclusively breast-fed infants tend to gain weight more rapidly in the first 2 to 3 months.

A mother and her infant tend to avoid other troop members, and the mother may socialize again very slowly.

In some populations, male infants tend to play in larger groups more often than females.

In Kasebier's photographs, infants tend to turn away, as if to explore the world.

He established that fat infants tend to have obesity problems as adults but thin babies do not.

As a result, their infants and children have higher survival rates and tend to be healthier and better nourished.

During the beginnings of babbling, infants tend to have greater mouth openings on the right side.

Premature infants born after 32 weeks of pregnancy tend to have less chance of problems than those born earlier.

It came from the observation that infants on farms tend to have fewer allergies than those who grow up in more sterile environments.

The affected infant tends to be short, with a disproportionately large head.