The Amazon’s fish live in water that can change dramatically with the seasons. In some places, oxygen levels fall so low that ordinary gill breathing is not enough. Several Amazonian species have ...

Some fish swim in synchrony. Others, it turns out, breathe in synchrony. This is true for arapaimas, an obligate air-breathing species living in the Amazon. A new study in Communications Biology, led ...

Amazon fish farms grew 450-fold since 1985. Satellite maps now show what land the ponds replaced and where the carbon cost ...

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 ...

A fish larger than a man, tasty as well as beautiful, the freshwater pirarucu is a favorite with poachers in a lawless part of the Amazon jungle where Brazil, Peru and Colombia meet. Prized for its ...

The fires burning through the Brazilian Amazon are a threat to the fish that rely on forest flooding to survive, raising fears the fish will be lost. The Amazon rainforest in Brazil is still burning, ...