April 22 marked 25 years since the opening of Disney's Animal Kingdom and to mark this silver anniversary, Disney put on a special ceremony in front of the Tree of Life with a performance from the Tam Tam Drummers of Harambe, Walt Disney World Ambassadors Ali Manion and Raevon Redding, VP of Disney's Animal Kingdom, Sarah Riles and Mark Penning, VP of Animals, Science and Environment for Disney Parks.