Zoológico de Cincinnati y Jardín Botánico

Cincinnati Zoo & Botanical Garden is the fifth-oldest zoo in the United States, opening in 1875, after the Philadelphia Zoo (1874), the Roger Williams Park Zoo (1872), the Lincoln Park Zoo (1868), and the Central Park Zoo (1864). It is located in the Avondale neighborhood of Cincinnati, Ohio. It originally began with 64.5 acres (26.5 ha) in the middle of the city, but has spread into the neighboring blocks and several reserves in Cincinnati's outer suburbs.

On May 28, 2016, a three-year-old boy climbed into a gorilla enclosure at the Cincinnati Zoo and Botanical Garden and was grabbed and dragged by Harambe, a 17-year-old western lowland gorilla. Fearing for the boy's life, a zoo worker shot and killed Harambe. The incident was recorded on video and received broad international coverage and commentary, including controversy over the choice to kill Harambe.