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CBS News 8 - San Diego, CA News Station - KFMB Channel 8 | cbs8.com

Protecting the migration of the monarch butterfly

Monarch butterflies migrate north from Mexico every year, and they normally number in the millions. But experts say not this year, because the population is rapidly declining.

SAN DIEGO (CBS 8) - Monarch butterflies migrate north from Mexico every year, and they normally number in the millions. But experts say not this year, because the population is rapidly declining.

In this News 8 video story, Shawn Styles reports from Windansea with why there is such a sharp drop-off and what's being done to save these butterflies.