The Milwaukee Zoo mourns the loss of Patti, the oldest hippo in U.S. zoos, who was known for her spirited personality.

The Milwaukee County Zoo has announced that longtime resident Patti, a river hippopotamus, was humanely euthanized on Sunday, ...

Patti the river hippopotamus from the Milwaukee County Zoo has died. Zoo animal care specialists say she was humanely ...

The Milwaukee County Zoo has announced the death of Patti, a 55-year-old river hippopotamus who was humanely euthanized on Sunday, Nov. 10. Patti had been a resident of the zoo fo ...

Spotted hyenas, camels, and three species of penguin are just some of the animals you'll see if you visit the Milwaukee County Zoo. Opened in 1892, the zoo started as a miniature mammal and bird ...

A holiday lights extravaganza is coming back to the Milwaukee County Zoo for the fourth year, with thousands of lights set up ...

The Milwaukee County Zoo's annual Halloween event, Boo at the Zoo, is set for this weekend. Here's what to know. Outdoor animals will be in their not-open-to-the-public buildings at the time of ...

The Milwaukee County Zoo sold its steam engines to a preservation society in the Wisconsin Dells. If you want to visit the Riverside and Greater Northern Railroad, it is open every day in the ...

Journalists are increasingly harnessing the power of data to inform their reporting. Eva Wen, a data journalist on the ...

Boo at the Zoo: Drive-Thru is back this year at the Milwaukee County Zoo but with an added bonus: trick or treating. The annual zoo haunting event – a fundraiser that helps directly support the ...