Changes

Humus is the end product of [[decomposition]] of dead leaves, wood, and animal matter by smaller and smaller organisms.  Initially, larger creatures tear up the dead matter to obtain whatever food they can (e.g., squirrels eating the meat of nuts, scavengers eating meat off carcasses).  Then various [[insect]]s, [[fungi]] and [[bacteria]] start to consume and break down the remaining tissues.  The action of [[earthworm]]s helps work this material below the surface, where it does the most good.

Humus is the end product of [[decomposition]] of dead leaves, wood, and animal matter by smaller and smaller organisms.  Initially, larger creatures tear up the dead matter to obtain whatever food they can (e.g., squirrels eating the meat of nuts, scavengers eating meat off carcasses).  Then various [[insect]]s, [[fungi]] and [[bacteria]] start to consume and break down the remaining tissues.  The action of [[earthworm]]s helps work this material below the surface, where it does the most good.

[[category:ecology]]

[[Category:Ecology]]

==References==

==References==

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