Has bird flu already killed hundreds, if not thousands of penguins in Antarctica?
That's what researchers are seeking to find out after a scientific expedition last month found at least 532 dead Adelie penguins, with thousands more thought to have died, according to a statement from Federation University Australia.
While the researchers suspect the deadly H5N1 bird flu virus killed the penguins, the field tests were inconclusive, the university said. Samples are being shipped off to labs that the researchers hope will provide answers in coming months.