Inokashira Park Zoo is a city zoo in Musashino, Tokyo. It is in a corner of Inokashira Park near the Ghibli Museum. A branch of the zoo is in Mitaka. It opened on May 17, 1942. From Wikipedia
Inokashira Park Zoo investigates after 31 squirrels die following treatment with anti-parasitic medicine and insecticide, while the surviving squirrels are back on display.