Small mammals building to close What we know: The move to close the small mammals building is part of a strategic plan focused on the future of the zoo. That master plan was released in April 2025.

In late 2023, the Milwaukee Business Journal reported that following the completion of the zoo's Adventure Africa campaign, Morris said he was turning his sights to the small mammals building.

MILWAUKEE — The Milwaukee County Zoo announced Wednesday its plans to close the Small Mammals Building by the end of 2025. The building is one of the Zoo's original buildings.

MILWAUKEE -- It's the end of an era at the Milwaukee County Zoo. The Small Mammals Building, one of the zoo's original buildings, will close by the end of the year. The zoo announced the closure ...