Cuddling koalas show unexpected sociable side in surprising video / Couple returns from work to discover koala in their bedroom / Priyanka has a koala named after her! / Is it cruel to cuddle a koala? Sanctuary stops hugs amid debate. / Hands off the koala: why cuddling Australia's iconic marsupial could soon be a thing of the past / 'I need your help saving koalas': how Australians banded together to build wildlife corridors / Four wild ways to save the koala (that just might work) / Research milestone reached as healthy koala leaves treatment program / Heartbroken koala mourns friend / Australia once killed 600,000 koalas in a year. Now they're the nation's 'teddy bears.' What changed?