Assistant Curator Jeremy Carpenter says in a statement there's no reason to believe the animals have left zoo property. But he says nearby residents are being asked to watch for prairie dogs, just in case.
The zoo says the animals are not dangerous.
They were among a group of 20 prairie dogs that arrived from another zoo in November. The newcomers were kept in quarantine, then moved into the temporary housing two weeks ago. They were to be introduced into the zoo's regular prairie dog exhibit in the spring.