Motor development describes the increasing physical movements that humans acquire through their lifespan. They are the basic motor abilities that most humans develop as they get older. These movements are thought to be genetic in origin because they are the same physical movements universally, the physical abilities occur in the same order, and occur around the same age in all individuals.
For example, around age two months is when infants can lift their heads. Around six months is when infants can sit up without any support. Around one year old is when babies can walk without supporting themselves. If motor development does not occur within a normal time frame a developmental delay could be present in the infant.