But the zoo wont simply study animal populations or breed them, with hopes of adding to numbers in the wild. 예전에는 동물원의 보존 역할이 멸종 위기에 처한 종을 번식시키는 것이라고 생각했습니다. Now we realize thats not going to be enough, Jeffrey Bonner, the St. Louis Zoos president, said in a statement.