As the cherished rainforest in South America's Amazon River region continues to shrink, the river itself now presents evidence of other dangers: the overexploitation of freshwater fish. As the ...

A remarkable new fish, Priocharax rex, has been discovered in Colombia's Amazon. This tiny species, measuring just 0.8 inches ...

A mass fish die-off in Brazil’s Amazon River region has killed an estimated 20-30 metric tons of fish and other aquatic animals, following one of the worst droughts in Amazonian history. On the night ...

Although habitat fragmentation fosters extinctions, it also increases the probability of speciation by promoting and maintaining divergence among isolated populations. Here we test for the effects of ...

The health of the Amazon forest and river are intertwined. By storing carbon, the forest can be a key part of climate solutions but plans for expanding hydropower could undermine that climate solution ...

A massive, aggressive species of fish from the Amazon was found recently in the Caloosahatchee River, and at least one local fishing guide wonders if there are more plying Southwest Florida waters. "I ...

The world has seven continents, but do you know the largest freshwater fish in each? These creatures show the incredible diversity of Earth's inland waters. Let's get amazed as we look at these ...