The Arapaima (Arapaima gigas), also known as the Pirarucú or Paiche, is the world’s largest freshwater fish. It can reach lengths of up to 14.75 feet (4.5 m) and weigh up to 440 lbs (200 kg). Because ...
A new technique for sexing a giant Amazon fish may help create a sustainable source of protein in South America, report researchers writing in Fish Physiology and Biochemistry. Facing depletion ...
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