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periodical cicadas

periodical cicadas

Entomologists say the Brood X periodical cicada emergence of 2021—and the incredible volume of observations logged via the Cicada Safari mobile app—will open up a host of research avenues, exploring areas including how climate change affects their lifecycles, how their geographic ranges are changing, why some brood members emerge early or late, and how their egg-laying affects different plant tree species. (Photo by Pennsylvania Department of Conservation and Natural Resources – Forestry,

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