Famed zookeeper Jack Hanna, who is known for shows such as Animal Adventures and his regular appearances on the likes of The Late Show with David Letterman and Good Morning America, is continuing to ...

Donning his signature safari attire, "Jungle Jack" Hanna looked like he was ready to walk on stage for another performance on "The Late Show with David Letterman." But having already made his final ...

COLUMBUS, Ohio (AP) -- David Letterman's producers like it when Jack Hanna's zoo animals run amok on the show because it's good for laughs. What viewers don't see is the behind-the-scenes preparation ...

And among the famous faces of final guests to drop by The Ed Sullivan Theater in New York City to say goodbye, sometime during the next few remaining weeks, will be "Jungle" Jack Hanna. Hanna, 68, has ...