earth worm

another worm entrance house,and the last tree spots are to show the process of acumulation of earth that they do in building this kind of structure.basicly they use the material's more abundant arround the original hole,in this case is earth whith some animal hair,in other places they use leafs,litle branches,berrys,every thing that is near
http://en.wikipedia.org/wiki/Lumbricus_terrestris