I’ve fished for trout in California and I’ve reeled in a red snapper off the coast of Mexico, but I never knew you could catch Peacock Bass in the Rio Negro river. These fish are thought to be one of the most ferocious species of freshwater fish, and they are known for breaking lines and fishing poles while fishermen try to reel them in. Peacock fish aren’t shy either, they swim near the top of the water and nibble fishermen’s flies without question, almost as if daring them to try and catch them. Even if you’re an experienced fishermen, reeling in these fish is quite the challenge.