Slime Molds are a unique group of living things.  There is still much debate as to whether they should be grouped with the fungi or the protists.  They serve the same purpose as fungi in that they break down organic matter.  They are commonly seen in flower gardens on mulch, although the common species found in gardens does not closely resemble the one pictured.  While considered an ugly pest by gardeners slime molds have their place in the ecosystem and should be seen as the beneficial creatures they are.