A hail of a headache David McNamara, the manager of the Castle Hill Koala Park in Sydney, Australia, feeds some eucalyptus leaves to Gumnut, a 7-month-old baby Koala suffering from a hail hangover. Eucalyptus leaves and buds are the sole food of the small, tree-dwelling animals that resemble teddy bears. Gumnut is recovering from injuries he suffered when he was pelted by hailstones during hailstorms that ripped through Sydney on Jan. 21.