Muroids are large alien rodents that live on the planet Revonnah. They are the pests to the Amber Ogia crop.
The Muroids are giant, underground-dwelling, armadillo-like rodents that make pig-like grunting sounds and can ball up like pill bugs and roll.
Muroids were indirectly mentioned by Rook in The More Things Change: Part 2, when he said that the most interesting thing to do on Revonnah is to keep rodents out of the grain silos.
Muroids first appeared in Bros in Space, where they came to lick up the Amber Ogia liquid that Ben spilled accidentally on the ground and dropped on himself.
Muroids were seen again in While You Were Away, sleeping in the caves. They were scared off by Rook Shar.
Powers and Abilities
Muroids can roll themselves into a ball-like shape to escape their attackers.
Muroids can be trained to walk on two legs and handle machinery.
Muroids can be taught to say simple words, like "bro".
Ben 10: Omniverse
The name "Muroid" come from Muroidea, a large superfamily of rodents.