Foundations of Development
Our journey begins before birth, with genetics playing a crucial role. A zygote (fertilized egg) develops into an embryo and later a fetus that can respond to sound by six months. During the critical period, harmful substances called teratogens can damage the developing baby if the mother ingests them.
Newborns come equipped with several reflexes - involuntary reactions like sucking, swallowing, and the rooting reflex (turning their head when touched on the cheek). Their senses are developing at different rates - they can hear before birth but are born with underdeveloped vision (essentially "legally blind").
Motor development follows a predictable pattern as babies learn to roll over around 5½ months, stand at 8-9 months, and walk independently by 15 months. This development occurs through maturation - biological growth processes that happen naturally with minimal influence from experience.
💡 Quick Fact: Attachment, the emotional bond between infant and caregiver, is so important that babies often prefer contact comfort (touching something soft) over food when stressed, as shown in Harry Harlow's famous monkey experiments!





