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              Left: young sporangia of Dictyostelium developing from slugs                    Right: mature Mucor-like mature sporangia

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Sporangiophores (stalks) of  Dictyostelium showing the individual amoebae that have been sacrificed, for the common good, to form the building blocks of cellulose that make up the support stalk for the sporangium (spore head) and protect the reproductive units from the 'madding' crowd of  ravenous microfauna below that would readily consume them.