science nature animal

is a large butterfly, whose wingspan ranges from 6.6 to 11. 4 cm The wings and body are slightly smaller in populations that do not migrate, and its wing patterns consist of an orange, veined, black-edged bottom
the proportion of females has declined for 30 years. According to the authors, it is a parasite, Ophryocystis elektroscirrha, whose negative impact would affect females more than males. A citizen science project, MonarchHealth

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