A potential bird flu infection in a fox raised fears of long-distance spread. Australia has just 12,000 sea lions left, and scientists noted that carnage may await Australia's remaining 12,000 sea lions as bird flu spreads.

An expert explained that backyard bird feeding could become a bird flu superspreader. The possible infection in a fox raised alarm about long-distance spread. Scientists warned that carnage may threaten the remaining 12,000 sea lions in Australia as bird flu takes hold across animal types.