Monarch butterflies down 26% in Mexico wintering grounds

The number of monarch butterflies that showed up at their winter resting grounds in central Mexico decreased by about 26% this year, and four times as many trees were lost to illegal logging, drought and other causes, making 2020 a bad year for the butterflies.

from Phys.org - latest science and technology news stories https://ift.tt/3suEFAt

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