Patti was born in 1972 at the Dallas Zoo. She’s been living at the Milwaukee County Zoo for more than 50 years. The median life expectancy of a hippo in human care is around 37 years ...

Patti was born in 1972 at the Dallas Zoo. She’s been living at the Milwaukee County Zoo for more than 50 years. The median life expectancy of a hippo in human care is around 37 years, the zoo said.

A river hippopotamus at the Milwaukee County Zoo was humanely euthanized on Sunday, Nov. 10. Patti marked her 55th birthday in February. She was born at the Dallas Zoo and arrived in Milwaukee in ...