Ecologists studying hare populations have found that the North American snowshoe hare follows a roughly ten-year cycle.

生态学家在研究野兔种群时发现，北美雪兔的生长周期大约为10年。

The snowshoe hare for example, a type of wild rabbit, changes color with seasons for this reason.

例如一种叫雪兔的野兔，因为这个原因，它们会随季节变化颜色。

The major concern of the snowshoe hare in the winter is predators.

雪靴野兔冬天最大的担忧是捕食者。

Anyway, the snowshoe hare has an adaptation that plays on the same idea.

总之，白靴兔有一项进化，原理与其差不多。

Now, the snowshoe hare, tell me, what sort of adaptations do you think it has developed that help it survive the Maine winters?

现在，告诉我，你认为雪兔发生了哪种进化，从而能够在缅因州的冬天生存下来？

This is a huge advantage for the snowshoe hare since, by contrast, the feet of its predators usually sink right down into the snow.

这是雪鞋兔的一个巨大的优势，因为相比之下，它的捕食者的脚通常会陷进雪里。