Researchers baffled by sightings of 20ft megasharks | 9 News Australia

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Have been left stunned after tiger sharks and great whites have been growing to astronomical sizes due to protected no-fishing Researchers zones. Subscribe and : | Get more breaking news at 9News Lunch Podcast | Listen Weekdays at 12.30pm AEST: FOLLOW 9News Australia Facebook: Twitter: https://twitter .com/9NewsAUS Instagram: Join 9News for the latest in news and events that affect you in your local city, as well as news from across Australia and the world. #9News #BreakingNews #NineNewsAustralia #9NewsAUS