Amazonian fish are facing an alarming new threat. A series of extreme droughts is drying up the region's rivers and wetlands — and scientists say the consequences could be devastating for both ...

Researchers carried out a massive survey in the Brazilian Amazon for so-called annual rivulids, a family of fish whose eggs survive in a hibernation state during drought and then hatch when it rains — ...

What happens when climate change and pesticide pollution collide? Ecosystems suffer, local businesses struggle, and communities face real risks. But aquatic solutions are emerging to protect Amazonian ...

Researchers recently conducted an extensive survey in the Brazilian Amazon to study annual rivulids, a family of fish known for their remarkable ability to survive droughts by entering a dormant state ...

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 ...

Current methods of identifying fish species require scientists to examine specimens through a microscope or conduct DNA testing. But what if identification could be achieved simply by taking a cell ...

A new species of the giant fish arapaima has been discovered from the central Amazon in Brazil, raising questions about what other species remain to be discovered and highlighting the potential for ...

Fish species that are both economically and ecologically important in South America live mysterious lives. Scientists know relatively little about the thousands of fish species living in the world's ...

Two years of record-breaking drought have dealt a heavy blow to what is arguably the Amazon's most successful sustainable economy: the managed fishery for the giant pirarucu. In Brazil´s Amazonas ...

The Nature Index tracks primary research articles from 145 natural-science and health-science journals, chosen based on reputation by an independent group of researchers. The Nature Index provides ...