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These sequences were filmed in the 1940s.

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Individual amoeba migrate on an auger plate.

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In a chemotactic response to starvation,

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individual amoeba migrate to form large aggregates.

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In this aggregation response,

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the cells will form moving streams.

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A low power view of a large aggregation response.

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The aggregate forms a crawling slug or pseudoplasmodium.

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The slime trail it leaves during migration is easily seen.

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A large pseudoplasmodium splits.

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When the pseudoplasmodium ceases migration,

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it differentiates into a fruiting body in a process called culmination.

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The anterior cells of the pseudoplasmodium will form the stalk.

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The more posterior cells differentiate into spore cells.

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In this experiment,

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an individual pseudoplasmodium was cut into 3 parts.

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Each fragment rearranges and differentiates into a complete fruiting body.