Toddler development is the study of the physical, cognitive, social, and emotional growth and changes that occur in children between the ages of 1-3 years old. This period is characterized by rapid and significant developmental milestones, such as language acquisition, motor skills development, social interactions, and self-regulation. Researchers in this field aim to understand the factors that influence toddler development, such as genetics, parenting practices, and environmental influences, in order to promote healthy growth and development in young children. Additionally, they may also study different interventions and strategies that can help support and enhance toddlers' development during this critical stage of life.