Baby Development Stages and Milestones

Development

Your baby is a marvel, growing, changing, and accomplishing at a rapid pace. Read up on your baby’s development here.

Image of a baby lying on their back, reaching up toward a small toy (black and white dog) that a caregiver is holding.

When, What, and How Far Can Newborns See—Including Colors?

By Christopher B. Peltier

From birth, babies use their eyes to discover the world around them! Get all the details on when and how far newborns can see, when they see color, and more.

8 min read

When Do Babies Start Cooing? All About Your Baby’s First Sounds

During the first few weeks of their lives, babies start making sounds and learn to communicate. Read all about when babies start cooing, and how to encourage it.

7 min read

When Can Babies Sit Up By Themselves?

Find out at what age your baby might sit up on his own, learn the signs your baby is about to reach this milestone, and how to help your baby learn to sit up.

5 min read

Caring for the Soft Spot on Your Baby’s Head

Your baby’s head has soft spots that are sensitive. Learn what those soft spots are, when they will harden, and how to protect your baby’s head.

7 min read

When Do Babies Roll Over? How to Encourage It

By Christopher B. Peltier

You might be wondering, when do babies start rolling over. Find out at what age it typically happens and how to help and encourage it.

18 min read

Your 7-Month-Old Baby's Development and Milestones

By Christopher B. Peltier

Your baby has reached the 7-month-old milestone. Read more about your baby’s development, feeding routine, and sleep schedule during this month.

11 min read

Tips for Teaching Baby Sign Language

By Christopher B. Peltier

Teach your baby sign language to communicate before speaking. Begin at 6-7 months with simple signs like “milk” and “more” for easier daily interactions.

6 min read

What Is Object Permanence and When Do Babies Understand It?

By Christopher B. Peltier

Grasping the concept of object permanence is an important part of your baby’s cognitive development. Learn more about what object permanence is here.

6 min read

When Do Babies Start Walking? Signs, Tips, and Milestones

By Christopher B. Peltier

Find out the typical age babies start walking, signs they’re ready, tips to encourage their first steps, and when to consult a healthcare provider about milestones.