Monarch butterflies are now listed as endangered because of fast dwindling populations in North America.
FILE - Monarch butterflies land on branches at Monarch Grove Sanctuary in Pacific Grove, Calif., Wednesday, Nov. 10, 2021. On Thursday, July 21, 2022, the International Union for the Conservation of Nature said migrating monarch butterflies have moved closer to extinction in the past decade prompting scientists to officially designate them as endangered.
The group estimates that the population of monarch butterflies in North America has declined between 22% and 72% over 10 years, depending on the measurement method. After wintering in the mountains of central Mexico, the butterflies migrate to the north, breeding multiple generations along the way for thousands of miles. The offspring that reach southern Canada then begin the trip back to Mexico at the end of summer.
“There are things people can do to help,” she said, including planting milkweed, a plant that the caterpillars depend upon.The United States hasmonarch butterflies under the Endangered Species Act, but several environmental groups believe it should be listed.
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