Nov. 7, 2011 at 10:43 AM ET
They may look like a cross between a monster chipmunk and a giant hamster, but they're something else again: capybaras. The largest living rodents in the world, they are related to guinea pigs. They are native to most of Latin America.
These capybaras were born at the zoo on Nov. 1.
See another fun photo of a capybara here.