Monarch butterfly population dwindling in California

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Researchers said numbers are disturbingly low for California's monarch butterflies, and it may be an understatement.

Researchers said numbers are disturbingly low for California's monarch butterflies, and it may be an understatement.

In a recent census, it found an 86 percent decline in the number of monarchs wintering on the California coast compared to 2017.

It's a more than 3,000 percent decline compared to 1981.

One study said the butterflies will go extinct if nothing is done to save them.

They're currently threatened by pesticides, habitat destruction and climate change.
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