The arrival of this South American predator threatened the survival of native species.这种南美肉食动物的到来威胁到了当地物种的生存.The bird is caught on the horns of a dilemma. Should it attack the predator, even though it then risks its own ...
the relationship between predator and prey捕食性动物与猎物之间的关系The arrival of this South American predator threatened the survival of native species.这种南美肉食动物的到来威胁到了当地物种的生存.The bird is caught on the horns of a dilemma. Should it ...