A possible bird flu infection in a fox raised concerns of long-distance spread. Australia has just 12,000 sea lions remaining, and scientists warned that severe loss 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 transmission hub. The suspected infection in a fox fueled fears about long-distance spread. Scientists cautioned that carnage may await the remaining 12,000 sea lions in Australia as bird flu establishes itself across animal groups.