A “Climate Catastrophe”: Western US Salmon on the Brink
A “Climate Catastrophe”: Western US Salmon on the Brink
A recent sampling from two California streams found nearly all juvenile salmon were infected with deadly parasites, and conditions are expected to worsen.
A “Climate Catastrophe”: Western US Salmon on the Brink
A “Climate Catastrophe”: Western US Salmon on the Brink

A recent sampling from two California streams found nearly all juvenile salmon were infected with deadly parasites, and conditions are expected to worsen.

A recent sampling from two California streams found nearly all juvenile salmon were infected with deadly parasites, and conditions are expected to worsen.

DNA dynamics, ecology
With Video
Australian Beetles Walk on the Underside of Water’s Surface
Australian Beetles Walk on the Underside of Water’s Surface
Lisa Winter | Jul 15, 2021
Watch one scurry around upside down in a remarkably unusual form of locomotion.
Mice Plague Eastern Australia in Record Numbers
Mice Plague Eastern Australia in Record Numbers
Bianca Nogrady | Jul 12, 2021
A population explosion that began late last year has yet to abate. Meanwhile, researchers are exploring novel approaches to combat the nonnative species.
Pandemic Lockdown Eases Mountain Lions’ Fear of Urban Areas
Pandemic Lockdown Eases Mountain Lions’ Fear of Urban Areas
Jef Akst | Jul 2, 2021
Six GPS-tracked wild cats wandered closer to Santa Cruz, California, and surrounding towns as human activity died down under shelter-in-place orders last March.
Why Turkey’s Sea of Marmara Is Full of Marine Snot
Why Turkey’s Sea of Marmara Is Full of Marine Snot
Christie Wilcox | Jun 11, 2021
Turkish officials are scrambling to clean up a massive, gooey plankton bloom that’s sliming the country’s ports and could suffocate the area’s marine ecosystems.
WITH VIDEO
A Protist Hosts Both Green Algae and Purple Bacteria Symbionts
A Protist Hosts Both Green Algae and Purple Bacteria Symbionts
Abby Olena | Jun 11, 2021
Having two different endosymbionts may allow the ciliate Pseudoblepharisma tenue to live in both oxygen-rich and oxygen-poor zones of the muddy bogs of southern Germany.
Oxygen Levels Dropping in US and European Lakes: Study
Oxygen Levels Dropping in US and European Lakes: Study
Lisa Winter | Jun 7, 2021
Researchers find a widespread decline in dissolved oxygen levels in lakes, which is known to reshape ecosystems.
Adriana L. Romero-Olivares Tracks Fungi’s Response to Climate Change
Adriana L. Romero-Olivares Tracks Fungi’s Response to Climate Change
Amanda Heidt | Jun 1, 2021
The New Mexico State University soil microbiologist uses molecular tools to understand how fungi are adapting to a warming world and what that might mean for global nutrient cycles.
Firefly Tourism Sparks Calls for Sustainable Practices
Firefly Tourism Sparks Calls for Sustainable Practices
Asher Jones | Jun 1, 2021
More and more people are traveling around the world to watch the luminous displays of fireflies, but tourism-related light pollution and habitat degradation threaten to snuff out the insects at some locations.  
Few Car Crashes with Deer in Wisconsin, Perhaps Thanks to Wolves
Few Car Crashes with Deer in Wisconsin, Perhaps Thanks to Wolves
Jef Akst | May 25, 2021
In areas where gray wolf populations have grown, motorists have fewer collisions with deer, likely due to the predators keeping deer away from roadways.
Salamander Expert David Wake Dies at 84
Salamander Expert David Wake Dies at 84
Lisa Winter | May 21, 2021
Throughout his career, the University of California, Berkeley, herpetologist named 144 species of salamanders.
While Some Sharks Flee, Tiger Sharks Brave Stormy Seas
While Some Sharks Flee, Tiger Sharks Brave Stormy Seas
Nikk Ogasa | May 12, 2021
For the first time, scientists tracked large shark movements during hurricanes and found that tiger sharks may find the turmoil opportunistic for feeding.
Book Excerpt from <em>Finding the Mother Tree</em>
Book Excerpt from Finding the Mother Tree
Suzanne Simard | May 1, 2021
In the book’s introduction, “Connections,” Suzanne Simard relates how her “perception of the woods has been turned upside down.”
Amanda Tokash-Peters Links the Microbiome to Ecology
Amanda Tokash-Peters Links the Microbiome to Ecology
Shawna Williams | May 1, 2021
The Centenary University professor studies the far-reaching effects of changes in the gut bacteria of mosquitos and other species.
Opinion: Western Canada Must Stop Clearcutting Its &ldquo;Mother&rdquo; Trees
Opinion: Western Canada Must Stop Clearcutting Its “Mother” Trees
Suzanne Simard, Teresa Ryan | May 1, 2021
Feeding the world’s insatiable appetite for wood products is sacrificing the future of a crucial ecosystem.
Aphid Salivary Gene May Regulate Gall Color
Aphid Salivary Gene May Regulate Gall Color
Asher Jones | May 1, 2021
Whether the galls that aphids make on witch hazel leaves are red or green is associated with a gene expressed in the insects’ salivary glands.
Polar Bear Researcher Markus Dyck Dies in Helicopter Crash
Polar Bear Researcher Markus Dyck Dies in Helicopter Crash
Lisa Winter | Apr 30, 2021
Dyck was widely respected for working alongside indigenous groups as he studied polar bears on their ancestral lands.
Lyme Disease Pathogen Present in Ticks Near the Coast
Lyme Disease Pathogen Present in Ticks Near the Coast
Kerry Grens | Apr 26, 2021
In Northern California, the proportion of ticks infected with the bacterium Borrelia burgdorferi was the same in shrubland along beaches as in woodland habitats.
Bald Eagle Killer Identified
Bald Eagle Killer Identified
Abby Olena | Mar 25, 2021
After a nearly 30-year hunt, researchers have shown that a neurotoxin generated by cyanobacteria on invasive plants is responsible for eagle and waterbird deaths from vacuolar myelinopathy.
Science with Borders: Researchers Navigate Red Tape
Science with Borders: Researchers Navigate Red Tape
Max Kozlov | Mar 1, 2021
Scientists who work with foreign biological specimens face a patchwork of permits that threaten to block their projects, with potentially harmful consequences for the ecosystems they study.