Dead plant material, such as fallen leaves, bark, and twigs, that has fallen to the ground and may be used by animals as habitat or for nest-building, eventually decomposing and releasing nutrients into the soil.
A shelter made of vegetation and other materials by packrats.
An accumulation of dried urine and fecal deposits made by hyraxes.
A refuse heap usually near a dwelling.
A prehistoric pile of bones and shells.
A dungheap.