What killed 500-plus penguins? How scientists solved the mystery

Summary
The penguins that perished lived on the Danger Islands in Antarctica. The prime suspect was avian flu. Researchers were surprised by what they found.
Description from NPR.
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What killed 500-plus penguins? How scientists solved the mystery
The penguins that perished lived on the Danger Islands in Antarctica. The prime suspect was avian flu. Researchers were surprised by what they found.