Crawling is a form of moving around by some animals, and, in some cases humans, generally involving slow movement on all limbs. Transport or transportation is the movement of people, goods, signals and information. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Binomial name Homo sapiens Linnaeus, 1758 Subspecies Homo sapiens idaltu(extinct) Homo sapiens sapiens Homo (genus). ... A limb (from the Old English lim) is a jointed appendage of the human or animal body; a large or main branch of a tree; a representative, branch or member of a group or organization. ...

For humans it usually means moving on knees and hands, with support from the toes. Except for using a vehicle or being carried by an animal, it is the main alternative to walking and running. Crawling is used mainly when a person is not capable of walking because of being an infant or due to a disability or being wounded or sick. It is also applied in very low places (a cave, under a table, etc.), when searching for something on the ground, and for fun. An x-ray of a human knee In human anatomy, the knee is the leg joint connecting the femur and the tibia. ... A human hand typically has four fingers and a thumb The hand (med. ... Toes on a humans right foot. ... Vehicles are non-living means of transportation. ... Sheep walking along a road Walk redirects here. ... Man Running - Edward Muybridge Horse Running - Edward Muybridge Running is by definition the fastest means for an animal to move on foot. ... A human infant The word infant derives from the Latin word in-fans, meaning unable to speak. It is commonly used as a slightly more formal word for baby (the youngest category of child). ... Alternate meanings: Cave (disambiguation) This article is about natural caves; for artificial caves used as dwellings, such as those in north China, see yaodong. ... Furniture is the collective term for the movable objects which support the human body (seating furniture and beds), provide storage, and hold objects on horizontal surfaces above the ground. ...

In the case of gun fire (or other projectiles flying over), crawling reduces the risk of being hit. 155 mm M198 howitzer U.S. Army soldier with a compact M249 variant USS Iowa (BB-61) fires a full broadside of nine 16/50 and six 5/38 guns during a target exercise near Vieques Island, Puerto Rico, 1 July 1984. ... Shooting is the act of causing a gun to fire at a target. ... A projectile is any object sent through space by the application of a force. ...

See also

• Front crawl (swimming style)
• Rock crawl (off-road sport involving heavily modified trucks)
• Kneeling
• Plastun
• Web crawling (technology for search engines)