Like the Amazon rain forest, the Amazon River is home to creatures of extreme diversity, helping to make South America the continent with more fish speciesNo river system, anywhere in the world, is as rich in catfish species as the Amazon basin There are over 3000 different species of fish that occur in the Amazon Amazingly, almost half of them are catfish! Amazon's biggest fish faces threat of extinction The arapaima fish, native to the Amazon River basin, can weigh as much as 400 pounds (180 kilograms) (Sergio Ricardo de Oliveira) Measuring 10
Amazon River Fish Best Known Species Rainforest Cruises