Bird flu kills 13,000 seal pups on remote Australian island
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A bird flu outbreak on the remote Heard and McDonald Islands has resulted in the death of 13,000 seal pups. Researchers discovered large numbers of seal carcasses on the islands in October 2025, indicating a severe impact of the disease on the local seal population.
Researchers found the Heard and McDonald Islands littered with seal carcasses in October 2025.