Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Two new colorful ...

You won’t believe what’s for sale on Amazon – thousands of live fish ready to ship straight to your door. From rare species ...

Note to editors: Photos of the new fish species, its threatened habitat and region, and the scientists who made the discovery in the field, as well as other associated press materials can be found via ...

Hosts of NPR's science podcast discuss new findings about long-distance fly migration, an unexpected impact of emissions in ...

SAO RAIMUNDO, Brazil - Even in the most biodiverse rainforest of the world, the pirarucu stands out: It can weigh up to 440 pounds, by far the largest of 2,300 known fish species in the Amazon. Not so ...

Researchers discovered a new species dwelling at the bottom of a river in the Amazon rainforest, according to a new study. Image from the Journal of Fish Biology A rare new species of fish was ...

Approximately nine out of 10 studies focused on "Brazilian sites along the main Amazon River," and research routinely ...

If you liked this story, share it with other people. Small hydropower plants and small-scale fish farming in the Brazilian Amazon basin are often thought to cause negligible environmental harm, yet a ...

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 ...