Tara Djokic shares how an unexpected discovery in the western Australian desert challenges the origins, evolution and future of life on the little blue planet we call home. This talk was filmed at TEDxSydney. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreading. To learn more about TEDxSHORTS, the TEDx program, or give feedback on this episode, please visit http://go.ted.com/tedxshorts.

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