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canvas prints feeding canvas prints prey canvas prints consume canvas prints eating canvas prints ingesting canvas prints ingestion canvas prints predator canvas prints attack canvas prints defense canvas prints biology canvas prints microbiology canvas prints zoology canvas prints micrograph canvas prints electron micrograph canvas prints scanning electron micrograph canvas prints

photographs feeding photos prey photos consume photos eating photos ingesting photos ingestion photos predator photos attack photos defense photos biology photos microbiology photos zoology photos micrograph photos electron micrograph photos scanning electron micrograph photos

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Colorized composite image of Didinium nasutum attacking and ingesting a Paramecium. Didinium nasutum is a one-celled, barrel-shaped ciliate characterized by two bands of cilia around its body. It is commonly found in bodies of fresh or brackish water, where it is a voracious predator of its main food source, the much larger unicellular ciliate Paramecium. Didinium attacks with poisonous trichocysts and attachment lines, and the Paramecium ejects its own trichocysts in defense. Didinium then engulfs its prey and digests it within a few hours, ready to hunt again. Composite and colorization of scanning electron micrographs (SEM), average magnification 1500x at 8"x10".