Walking is a milestone in motor development characterized by upright locomotion. It typically follows crawling in the orderly sequence of physical development.

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Crawling is a motor development milestone where an infant moves across a surface using their limbs. In the typical developmental sequence, infants begin to crawl after they have learned to sit unassisted.

Crawling as a Developmental Milestone

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

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