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@sjportugal1979 @NickARJones There's definitely a lot of research about their vision, especially in regards to their ability to compensate for the refraction of the water eg. https://t.co/CPhbcYAw5r
@sjportugal1979 @NickARJones There's definitely a lot of research about their vision, especially in regards to their ability to compensate for the refraction of the water eg. https://t.co/CPhbcYAw5r