当我们最后一次见到他的时候，帝王生活对他刚开始有了光明的一面。
When we saw him last, royalty was just beginning to have a bright side for him.
有研究发现帝王蝶有方向感，可以让他们在没有光的情况下，通过磁场感应的方式，它们能精确的从某处飞到另一个地方。
The study found that monarch butterflies have an internal sense of direction that allowed them to get from one point to another even in the absence of light by sensing the Earth's magnetic field.
在2009年，因为加拿大和美国那个寒冷的夏天，冬天来到墨西哥的帝王蝴蝶创下了自1994年有记录以来最低水平。
A cold summer in Canada and the United States in 2009 meant that the following winter saw fewer monarchs in Mexico than at any time since records began in 1994.
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