Article: Migration minded: The yearly sojourn of heat-seeking Monarchs floods Michoacan with colorful flight. (Living in Mexico).(butterflies)

Mexico experiences one of nature's loveliest gifts each winter when billions of Monarch butterflies descend on the warm forests of the country's central highlands.

The Monarch is known for its long migrations and this annual journey covers some 2,500 miles--from the chilly regions of Canada and the northeastern United States to the mountains of Michoacan. The resplendent yellow creatures blanket the countryside from November to March and can number as many as 4 million per acre of terrain, making the landscape look like moving clouds of gold.

Scientists believe that the migration has been going on for some 40 million years and is much like the migration ...

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