1. A composition suitable for use as an animal litter filler, comprising a first component having a density lower than that of a liquid, and a second component having a density of at least 5 lb / football higher than the density of the first component in which the first component is separated from the second component by moving toward the top of the composition while adding liquid to the composition. 2. The composition of claim 1, wherein the first component is wood. The composition of claim 2, wherein the wood is cedar, pine, or a combination thereof. A composition according to claim 1, wherein the first component ranges from about 2.5 to about 40% of the composition. The composition of claim 1, wherein the second component has a density of at least 10 lbs / football than the first component. The composition of claim 1, wherein the second component absorbs liquid. The composition of claim 1, wherein the second component is a cereal. The composition of claim 7, wherein the cereal crop comprises corncobs, corn kernels, dried grains (DDG), corn pellets, oat granules, barley granules, wheat bran, soy granules, rye granules, rice grains, rice granules, high-quality grains, sorghum granule or a combination thereof. 9. The composition of claim 1, wherein the second component is an ear of corn. The composition according to claim 1, in which the second component crumbles when adding liquid to the composition. The composition of claim 1, wherein the second component ranges from about 60 to about 97.5% of the composition. The composition of claim 1, wherein the first component is wood and the second component is cereal. The composition according to p. 12, in to1. Композиция, подходящая для применения в качестве наполнителя туалетов животных, содержащая первый компонент, имеющий плотность меньше, чем у жидкости, и второй компонент, имеющий плотность, по меньшей мере, на 5 фунт/футбольше плотности первого компонента, в которой первый компонент отделяется от второго компонента п