An Australian freshwater Murray cod has shocked scientists by swimming a marathon 530 miles alongside a serious river system, believed to be a file for the species.
The fish, named Arnie after Australia’s lately retired Olympic champion Ariarne Titmus, was first tagged in early 2022 in Mullaroo Creek, a couple of 13-hour drive west of Sydney, mentioned Arthur Rylah Institute researcher Zeb Tonkin.
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