Tyranid

In the fictional Warhammer 40,000 setting, the Tyranids are a nomadic alien race comprising many genetically engineered forms (see Tyranid genetics). They are the "Great Devourer" and are the "most alien race" in the Imperium. They are an "elemental force" that seeks to consume all in their path, draining all planets of any possible resource with horrific speed.
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