Amoeba
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An amoeba or ameba, often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopods. Amoebae do not form a sin
Clockwise from top right: Amoeba proteus, Actinophrys sol, Acanthamoeba sp., Nuclearia thermophila., Euglypha acanthophora, neutrophil ingesting bacteria.
Amoeba phagocytosis of a bacterium
Foraminifera have reticulose (net-like) pseudopods, and many species are visible with the naked eye.
Trophozoites of the pathogenic Entamoeba histolytica with ingested red blood cells
Vampyrellida
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The vampyrellids, colloquially known as vampire amoebae, are a group of free-living predatory amoebae classified as part of the lineage Endomyxa. They are distinguished from other groups of amoebae by
1899 illustration of Vampyrella invading Spirogyra