One of Ringling Bros and Barnum & Bailey Circus’ performing elephants enters the arena for it’s final show in Wilkes-Barre, Pennsylvania, U.S.

One of Ringling Bros and Barnum & Bailey Circus' performing elephants enters the arena for it's final show in Wilkes-Barre, Pennsylvania, May 1, 2016. REUTERS/Andrew Kelly

One of Ringling Bros and Barnum & Bailey Circus’ performing elephants enters the arena for it’s final show in Wilkes-Barre, Pennsylvania, May 1, 2016. REUTERS/Andrew Kelly