Sea lamprey are an invasive species that feed on the blood and bodily fluids of fish. Their numbers in the Great Lakes rose during the COVID-19 pandemic but have dropped to pre-pandemic levels, according to a report.
Sea lamprey are an invasive species that feed on the blood and bodily fluids of fish. Their numbers in the Great Lakes rose during the COVID-19 pandemic but have dropped to pre-pandemic levels, according to a report.
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