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Dubbed the world s oldest-known cave art, the painting represented a 45,000-year-old life-size warty pig.
Dr Sven Ouzman, from University Western Australia s School of Social Sciences, believes the latest discovery will help researchers better understand Australia s Indigenous history.
He said: This iconic kangaroo image is visually similar to rock paintings from islands in South East Asia dated to more than 40,000 years ago, suggesting a cultural link - and hinting at still older rock art in Australia.
Cissy Gore-Birch, Chair of the Balanggarra Aboriginal Corporation, added: It s important that Indigenous knowledge and stories are not lost and continue to be shared for generations to come.