The Amazon sailfin catfish is characterised by a body covered with bony plates and a thick, armoured structure. Native to ...

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Thousands of fish species — about 2,500 of them named — call the Amazon River home, but scientists estimate nearly half of the marine creatures lurking in the massive stretch of water remain ...

Amazon basin fish species living in lakes, floodplain forests and river systems need a high degree of connectivity to stay genetically diverse and healthy, but this connectivity is threatened by ...

Piranhas are among the most deadly creatures in the water, with razor-sharp teeth capable of slicing flesh easily, but a fish in the Amazon River basin has developed a "bulletproof vest" to protect ...

Measuring 10 feet (3 meters) long and weighing in at more than 400 pounds (180 kilograms), it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing.

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In the Amazon, Johnny Appleseed may be a fish. When rivers in the Amazon Basin flood into surrounding forests and savannas, a fruit-eating fish called a tambaqui proves itself a champion at excreting ...