How the monarch butterfly became a migrant
Paris (AFP) Oct 01, 2014 - The monarch butterfly's annual migration from North America to Mexico, a spectacular event at risk of disappearing forever, is the result of a single, millions-year old gene, biologists said Wednesday. Analysis of the insect's long-guarded genetic secrets has changed what we knew about its history, migration and distinctive bright orange-and-black wing colouring, they wrote in the journal Na ... more
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