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內容簡介: |
The monarch butterfly, one of the most seemingly delicate of
all of nature’s animals, proves to be one of the toughest in this
reader. Making the yearly trip from the Northern United States and
Canada to the Oyamel forest of Mexico is no easy task, and it takes
five generations of butterflies in order to do so. Battling cold
temperatures and the threat of starvation, these beautiful insects
complete an almost 3,000 mile journey over the course of two
months, only to have to turn and around and head back home.
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