Babies typically start crawling between 6 and 12 months of age, with the average range being around 8 to 10 months. Some babies may begin crawling as early as 6 months, while others might start closer to their first birthday or skip crawling altogether and move directly to standing or walking. Crawling readiness usually follows other developmental milestones such as holding their head up, rolling over, and sitting independently. There are various crawling styles, including classic hands-and-knees crawling, belly crawling, scooting, and cruising. The timing and style can vary based on each baby's unique development and environment, and crawling is no longer considered a strict milestone but an individual motor skill that some babies do and others bypass without concern.