Crawling, in humans, is a type of movement that engages all four limbs. It is one of the earliest forms of movement learned by human babies, as it precedes one’s ability to walk on two legs. Aside from being a preliminary form of movement in children, one might crawl because of an inability to walk on two legs, perhaps due to a disability, drunkenness, or injury. One also might crawl when in a confined space with a low ceiling, such as a cave or beneath a table, when searching for something on the ground, when trying to avoid detection, and so on.
Babies begin to crawl between six to ten months. However, some babies may skip crawling and move straight to pulling up, cruising, and walking. To encourage crawling, parents can give their babies supervised time on their tummies.
A crawl space is an unoccupied narrow space under a building that is similar to a basement, but it is vented to outside air. It is called a crawl space, as there is usually only enough room to crawl rather than stand. Its primary purpose is to promote air circulation through the home and to allow access to maintenance, repair, and installation needs.
A bar crawl (sometimes called a pub crawl, bar tour, or bar-hopping) is drinking in multiple pubs or bars in a single night. They serve as social gatherings for both tourists and locals, and they allows participants to meet new friends and visits new bars.