Koalas have quickly learned to use wildlife passageways to cross busy roads in Australia's Queensland state as they move between habitats. A new study tracked 72 koalas living near six wildlife crossings, specially installed by the Queensland government between 2010 and 2013.

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Koalas have quickly learned to use wildlife passageways to cross busy roads in Australia's Queensland state as they move between habitats. A new study tracked 72 koalas living near six wildlife crossings, specially installed by the Queensland government between 2010 and 2013.