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 ...
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 ...