帝王蝶：飞越从未见过的大陆的迁徙奇迹
Each autumn, millions of monarch butterflies in North America begin an extraordinary journey. They fly thousands of kilometres south to a small cluster of mountain forests, arriving at almost the same groves their ancestors used. What makes this feat astonishing is a single fact: no individual butterfly has ever made the trip before.
每年秋天，北美洲数以百万计的帝王蝶都会踏上一段非凡的旅程。它们向南飞行数千公里，抵达一小片山地森林，落脚在几乎和祖先相同的那几片树林里。真正令人惊叹的，是一个事实：没有任何一只蝴蝶曾经走过这段路。
The monarch's life is far too short to allow learning by experience. The butterflies that fly south in autumn are several generations removed from those that flew north the previous spring. The knowledge of the route cannot be taught by a parent or copied from a companion. It must somehow be written into the insect itself.
帝王蝶的寿命太短，根本来不及靠经验去学习。秋天南飞的那批蝴蝶，与上一个春天北迁的那批之间，已隔了好几代。这条路线的知识无法由父母传授，也无法向同伴模仿，它必然以某种方式被写进了这只昆虫本身之中。
Vocabsavvy · Claude Opus original (no text copied) · Vocabsavvy Original