只有那些有办法向这些岛屿传播种子的物种才能进行长途跋涉。
Only those species with ways of spreading seeds to these islands were able to undertake the long journeys.
在我们找到地方种植谷物、糖料作物、种子和油料作物之前，那些食物为我们提供了目前摄入的卡路里中的大部分。
That is before we look for the space to grow the grains, sugars, seeds and oils that provide us with the vast bulk of our current calorie intake.
另一个例子就是巨型动物和本地植物群的相互联系，尤其是那些仅依赖动物传播种子的植物。
Another example is the interaction of megafauna with local flora, in particular, plants that rely on animals to disperse their seeds.
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