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 ...

WASHINGTON, Oct 16 (Reuters) - One of the world's largest freshwater fish is protected by the natural equivalent of a "bullet-proof vest," helping it thrive in the dangerous waters of the Amazon River ...

The giant arapaima, the Amazon’s biggest fish, was under threat. Rolex Awards for Enterprise Laureate João Campos-Silva is engaging with local fishing communities to save it—and in doing so, setting ...