 The city 's zoo , the Tulsa Zoo , was voted " America 's Favorite Zoo " in 2005 by Microsoft Game Studios in connection with a national promotion of its Zoo Tycoon 2 computer game . The zoo encompasses a total of 84 acres ( 34 ha ) with over 2 @,@ 600 animals representing 400 species . The zoo is located in 2 @,@ 820 @-@ acre ( 1 @,@ 140 ha ) Mohawk Park ( the third largest municipal park in the United States ) which also contains the 745 @-@ acre ( 301 ha ) Oxley Nature Center . 
