Did you know that your baby will answer your smile with a smile in just the second month? It takes 5 minutes to know about ...

These terms are often used interchangeably by professionals, so you may be wondering when your newborn became an infant and whether you missed a significant developmental stage in the process.

Crawling styles and stages - is my baby crawling normally ... In their first year, you'll see a lot of physical development in your baby - from fine motor skills needed to put building blocks ...

At about nine months of age, most babies understood that though it was hidden, the toy still existed. Piaget found four major developmental stages (with many subdivisions). For the first year and ...