Add Yahoo as a preferred source to see more of our stories on Google. Thousands of fish species — about 2,500 of them named — call the Amazon River home, but scientists estimate nearly half of the ...

Scientists in the Colombian Amazon have identified a tiny freshwater fish species called Priocharax rex, measuring just 0.8 inches in length. This discovery is significant as it represents the largest ...

(CNN) — 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 ...