Biology
New Shipworm Eats Rock, a First for Animals
Like lichens, these animals mine stone. What they do with it is another question
The Artful Amoeba
A Blog About the Weird Wonderfulness of Life on Earth
Biology
Striped Maples Can Change Sex Repeatedly
Unassuming tree has unusual sex life
Biology
These Bizarre Parasites Garden Their Insect Hosts
Be glad human STDs do not include this one
Evolution
What the Heck Are These Fossils?
Are they the first animal embryos? 20 years post-discovery, these and other fossils from the 600-million-year-old Doushantuo Formation remain frustratingly enigmatic
Biology
Organ Stealing and Slave Driving Rampant among—Plankton?
Ocean microbes long thought to depend exclusively on eating turn out to have a solid, if sinister, Plan B
Biology
How a Half-Inch Beetle Finds Fires 80 Miles Away
Fire chaser beetles' ability to sense heat borders on the spooky
Biology
Kangaroo Rats Channel Jackie Chan to Evade Rattlesnakes [Video]
First ever high-speed video of interaction contains big surprises
Biology
For Some Reason, New World Flying Squirrels Fluoresce Pink
No other placental mammals have ever shown this ability—perhaps because we haven't looked
Evolution
2.1 Billion-Year-Old Tracks May Be Giant Ancient "Slime Molds" [Video]
Whatever made these structures lived 1.4 billion years before the first animals
Biology
The Case for Transmissible Alzheimer's Grows
What separates a lethal prion from a dementia-associated amyloid plaque? Maybe not much
Blog Index
@ScientificAmerican
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Anthropology in Practice
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Beautiful Minds
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Budding Scientist
Everything you always wanted to know about raising science-literate kids
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Cross-Check
Critical views of science in the news
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Dark Star Diaries
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Dog Spies
Explore the science behind the dog in your bed
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Extinction Countdown
News and research about endangered species from around the world
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Eye of the Storm
The Science Behind Extreme Weather
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Frontiers for Young Minds
Science by and for kids ages 8-15
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Hot Planet
Climate science in a changing world
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Illusion Chasers
Illusions, Delusions, and Everyday Deceptions
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Discussion and news about planets, exoplanets, and astrobiology
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Observations
Opinion, arguments & analyses from guest experts and from the editors of Scientific American
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Roots of Unity
Mathematics: learning it, doing it, celebrating it.
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Rosetta Stones
Adventures in the good science of rock-breaking.
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SA Visual
STAFFIllustrating science since 1845
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Talking back
STAFFA science blog, sans blague
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The Artful Amoeba
A Blog About the Weird Wonderfulness of Life on Earth
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Voices
Exploring and celebrating diversity in science.
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