Late Show host David Letterman, who’s sadly retiring later this month, and animal expert “Jungle” Jack Hanna look back at some of the funniest and most memorable moments from Jack’s numerous appearances on the show.
Late Show host David Letterman, who’s sadly retiring later this month, and animal expert “Jungle” Jack Hanna look back at some of the funniest and most memorable moments from Jack’s numerous appearances on the show.
