This discovery has reminded researchers just how much is still unknown about the Amazon’s wildlife. In 1841, researchers ...

A brand new species of vegetarian piranha ... in the Amazon River. Armed with notoriously sharp teeth, piranhas have built up a bloodthirsty reputation – with the fish being used by James ...

Tambaqui fish are found in the Amazon and belong to the pacu and red piranha family. Known for their strong teeth, they can grow to an intimidating four feet in length and weigh more than 100 lbs.