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CLEVELAND -- A trio of tiny critters are scampering around The RainForest at the Cleveland Metroparks Zoo.

Photos: Three capybaras born at Cleveland Zoo

According to zoo officials, three baby capybaras were born last Friday night. The new babies have doubled the number of capybaras at the Cleveland Metroparks Zoo, which includes their mom (Shoya), dad (Budha) and another adult female (Bonita).

All six are currently on exhibit on the second floor of The RainForest.

Capybaras are the largest rodents in the world. They can grow up to 4.5 feet long and weigh up to 150 pounds. They are native to South America and can be found throughout most of the continent east of the Andes Mountains.

While their appearance and natural swimming abilities might suggest they are related to the beaver, the capybara's closest relatives in the animal kingdom are actually chinchillas and guinea pigs.

The Zoo breeds capybaras as part of the Association of Zoos & Aquariums' Species Survival Program, which are cooperative breeding and management groups for maintaining healthy and genetically viable zoo animal populations.