When Matthew Feilen visited Brookfield Zoo in Chicago, he didn’t realise he was going to become the star attraction. Spotting that one of the sea lions was extremely alert, the 36-year-old digital forensic expert decided to show it some pictures he had recently taken of the ocean. Seriously engrossed in what it sees, the sea lion stares intently at the screen as Matthew swipes through more pics, including ones of Lake Michigan and his pet cat and dog.