Piranhas, notorious for sharp teeth and powerful bites, are specialized freshwater predators. Their anatomy and feeding ...

WASHINGTON (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 basin ...

Piranhas belong to a family of bony fish characterized by highly developed dentition. They’re cousins to the pacu fish, which has dentition eerily similar to human teeth. Unlike pacu teeth, which are ...

Piranhas had become accustomed to the free food discarded in the river. Once first blood was drawn, the school attacked en masse. When you purchase through links on our site, we may earn an affiliate ...