How do different soil animals move?

There are a great many soil animals. Individual views are never sampled on the surface. The soil, as a habitat, requires specific organs of movement from animals. Some have strong digging (or burrowing) limbs; some (concerning annelids) very developed two-layer muscles, pseudopodia; also soil animals often have some structural features of the body: specific head capsules; the ability to change the shape (thickness) of the body; also some species secrete mucus to facilitate advancement; and all such animals have features of morphology (that is, the structure of the body and limbs, if any).