COROMANDEL VALLEY, Australia — Picture a Christmas tree and you'll probably think of baubles, tinsel and fairy lights, but one Australian woman came home to find an unusual adornment: A koala.

Add Yahoo as a preferred source to see more of our stories on Google. A koala climbs a tree in its new enclosure at Wilhelma in Stuttgart. Bernd Weißbrod/dpa A koala made an unexpected visit to a ...