Emeritus Professor Robert Harcourt is one of five winners in Nature's 2026 photo competition, captured at Ningaloo Reef while documenting a whale shark feeding event.The Macquarie University Professor of Marine Ecology was in the water when a silvertip shark crept up on his colleague mid-dive. Mike didn't notice. He was focused on microbes."Swimming next to a 12-metre whale shark is both humbling and exhilarating," says Harcourt.Read more: https://macquarie.university/4ejKrOL