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See Also
An article about EVOs can also be found on the Generator Rex Wiki.
Exponentially Variegated Organism
Bug-bat EVO
General Information
Home World Rex's Earth
Body Various
Powers and Abilities
Abilities Various
First Appearance Ben 10-Generator Rex: Heroes United

EVOs are organisms that had their intracellular Nanites activated. After an experiment gone wrong, thus creating the Nanite Event, all living things in Rex's Universe were infected by Nanites.

The appearance of EVOs are random, as the active Nanites altered their appearance at the molecular level, thus giving them various powers and abilities.

Notable EVOs

Former EVOs


EVO stands for Exponentially Variegated Organism.

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