This was partly because, for religious reasons, extinction was not believed possible until later proved so by Georges Cuvier, and partly because many scientists doubted that the dodo had ever existed.
Isto foi en parte por motivos relixiosos, xa que a extinción non se consideraba posible ata que foi probada posteriormente por Georges Cuvier, e en parte porque gran parte dos científicos dubidaban de que o dodo existira nalgún momento.