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Despiteneeding18-21hoursofsleepaday,koalasarestillcapableofstartlingdisplaysofenergy,agilityandaggression--especiallyaroundmatingseason.GetacloserlookatthesurprisinglyrichandunexpectedhiddenlivesoftheseiconicAustralianmarsupialsintheirnaturalhabitat.