Saving the Hellbender, a Giant Salamander Under ThreatSaving the Hellbender, a Giant Salamander Under Threat
Saving the Hellbender, a Giant Salamander Under Threat
Populations of the two-foot-long amphibians are declining across North America. Scientists are struggling to find out why, before it’s too late.
Saving the Hellbender, a Giant Salamander Under Threat
Saving the Hellbender, a Giant Salamander Under Threat

Populations of the two-foot-long amphibians are declining across North America. Scientists are struggling to find out why, before it’s too late.

Populations of the two-foot-long amphibians are declining across North America. Scientists are struggling to find out why, before it’s too late.

river
Image of the Day: Wet PlanetImage of the Day: Wet Planet
Image of the Day: Wet Planet
Carolyn Wilke | Mar 28, 2019
An analysis of the scars left by long-gone flows reveals that Mars’s rivers may have run even when scientists thought the planet was drying out.
Like a Sturgeon
Like a Sturgeon
The Scientist Staff | Jan 1, 2019
Watch scenes from the Maumee River in Ohio, where researchers are stocking an ancient fish species that is struggling against extinction.
Researchers Aim to Reestablish an Ancient Fish in an Ohio River
Researchers Aim to Reestablish an Ancient Fish in an Ohio River
Shawna Williams | Jan 1, 2019
The sturgeon restoration study’s outcome won’t be known for decades.
Do Electric Fish Dream in Zaps?
Do Electric Fish Dream in Zaps?
Shawna Williams | Aug 1, 2018
Studying electrical communication in the wild requires braving the Amazon jungle with sensitive equipment.
Rivers and Streams Compose Much More of Earth's Surface Than Thought
Rivers and Streams Compose Much More of Earth's Surface Than Thought
Shawna Williams | Jun 28, 2018
A new estimate bumps up the area previously estimated to be covered by running water by more than 40 percent.
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Shawna Williams | Mar 1, 2018
The variation may help explain why stocked salmon don’t fare as well in the ocean.
Rock Snot Explained
Rock Snot Explained
Bob Grant | May 8, 2014
An increasingly common algal growth, found in rivers the world over, is caused by changing environmental conditions, not accidental introductions.
$32K to Swim in Polluted River
$32K to Swim in Polluted River
Jef Akst | Feb 19, 2013
A Chinese businessman offers a government official a large monetary reward to take a dip in a river that runs through the town of Ruian.
Flooding Rivers with Resistance
Flooding Rivers with Resistance
Dan Cossins | Oct 18, 2012
A river system in Colorado contains high concentrations of antibiotic resistance genes in areas close to water-treatment plants.