The Milwaukee County Zoo is a zoo in Milwaukee, Wisconsin, operated by the Milwaukee County Parks Commission. The zoo houses 1,800 animals and covers an area of 190 acres. It is noted for the second birth of polar bears and siamangs in captivity and for their locally famous gorilla Samson, who lived from 1950 to 1981 and whose bones are now on display at the Milwaukee Public Museum. During World War II, a celebrity animal of the zoo was Gertie the Duck and her ducklings. The zoo is also home to one of the largest group of bonobos in one location outside their native Democratic Republic of the Congo, and has two cheetahs from the National Zoo in Washington, DC.