The biology of bonding unravels to reveal how caregiving, social interaction and stress can physically change both parent and newborn.

From how they grow to how they go, three scientists find out that crawling is much more than just a transitional phase.

Experts examine the rhythm and flow of language and explore how babies break down linguistic beats before they know how to speak.

Researchers delve into sleep, a dynamic time for babies, with studies on twitching, apps and naps.

Scientists venture into the ways that walking changes a baby's world and unveil findings on neonatal reflexes, skeletal development and talking.

Proving babies truly are what they eat, researchers discuss how breast milk, iron and microbes can enrich, nourish and protect offspring.