Alabama Jumpers are the most reliable and best all-purpose earthworms around. Their extremely durable skin allows them to burrow through a variety of soils, including dense clay or sandy soil. Overtime, by leaving castings behind as they burrow, Alabama Jumpers will convert the most unproductive earth into a rich, organic soil where plants will thrive.? Alabama Jumpers are strong and do not stay at the surface. They are the best natural aeration and burrow deeply, creating air passages in the soil that facilitates root growth and soil health.? Alabama Jumpers also have a hearty appetite and will gobble up any compost materials they encounter. They also are productive breeders and should be released in batches.