Biology
Cat Sharks Send Secret, Fluorescent Messages
A few sharks fluoresce like ravers at a club. But why?
The Artful Amoeba
A Blog About the Weird Wonderfulness of Life on Earth
Evolution
Under Soil and above Caves, a Warren of Hidden Life
Off limits to humans, the cracks and crevices of the epikarst hide a vast and diverse world of animals
Biology
A Jellyfish So Surreal That It Looks Unreal Is Discovered on the Enigma Seamount
The beautiful, bizarre animal was discovered this week during NOAA's exploration of the area around the Mariana Trench
Evolution
Crumpled Sock? Churro? No, That's Just Xenoturbella
Four new species of a rarely seen, bizarre sea creature have been discovered in eastern Pacific Ocean, and their genetic evidence confirms a pivotal evolutionary placement
Biology
Wanted: Natural History Transcriptionists
Love natural history and good at deciphering handwriting? Then the citizen science project "Notes From Nature" has got a job for you.
Evolution
New Oldest Fungus Fossil Grew Like Dry Rot
... but so long ago wood had not evolved yet.
Biology
Water Bears Frozen During the Reagan Administration Wake Up and Lay Eggs
One of the cutest organisms on Earth is also one of the toughest, as three water bears' intrepid 30-year voyage through deep-freeze has proved once more
The Sciences
Uneven Distribution of Viruses Suggests Surprising Evolutionary Power
Did viruses help spur the evolution of complex life?
The Sciences
Beams Built of Diatom Boast Record-Setting Strength
How scientists fabricated the beams is almost as extraordinary as their toughness.
The Sciences
Casper, the Friendly Deep Sea Octopus Who's Entirely New to Science
On its very first dive of the season, NOAA's Okeanos Explorer encountered something unexpected while collecting rocks.
Blog Index
@ScientificAmerican
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Anthropology in Practice
Exploring the human condition.
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Beautiful Minds
Insights into intelligence, creativity, personality, and well-being
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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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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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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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