Rubuta ci gaba don wannan sakin layi - Birnin ya sayi nuni na farko, Flight Cage, daga Smithsonian Institution bayan 1904 St. Louis World's Fair
Ka yi haƙuri. Bayan da aka kafa gidan zoo a 1910, an kara sabbin kayan baje koli, yankuna, da gine-gine a cikin shekarun da suka gabata don inganta kula da dabbobin, dabbobin da ke nunawa da wuraren zama, da ilimi da fassara. Shugaban kudu namiji, da ƙahoninsa masu kyau, alama ce ta gidan namun daji na Saint Louis.