Description

Although no one had ever followed North American monarch butterflies on their annual southward journey to Mexico and California, in the 1990s there were well-accepted assumptions about the nature and form of the migration. But to Robert Michael Pyle, a naturalist with long experience in monarch conservation, the received wisdom about the butterflies long journey just didn t make sense. In the autumn of 1996 he set out to uncover the facts, to pursue the tide of cinnamon sailors on their long, mysterious flight.

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