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Butterflies lose habitat in Mexico (4:00)

Butterflies lose habitat in Mexico (4:00) March 7, 2008 | permalink | email | The monarch butterflies of central Mexico are beginning their annual northern migration. But this year, there may be a decline in the number making the trip. Anchor Marco Werman speaks with butterfly expert Lincoln Brower, who says new satellite photos reveal there's been illegal clear-cutting in the forested areas where many butterflies spent the winter last year. View his photography at 'Journey North'