Evolution
10 Long, Happy Years of Xenoposeidon
Publish a weird new species of dinosaur. Sit back and let history run its course. It might be bad. It might not
Tetrapod Zoology
Amphibians, reptiles, birds and mammals - living and extinct
Evolution
The "Birds Are Not Dinosaurs" Movement
Birds are dinosaurs. But some scientists argue that this just can’t be so because... because... well, it just can’t. What, specifically, are their arguments?
Biology
The Tiger Subspecies Revised, 2017
So, how many different tiger subspecies are there, 8? 7? 6? Err...... 2?
Biology
How Many White Rhino Species Are There? The Conversation Continues
Is there one white rhino species, or two? And what, if anything, can we do about these intractable debates on lumping versus splitting?
Biology
Tet Zoo Reviews Zoos: Colchester Zoo
Colchester Zoo, England--What is it like and what is there to see there and is it good? Let’s find out
Biology
The TetZooCon of 2017
The fourth TetZooCon—a convention devoted to the theme and content of the blog Tetrapod Zoology—just happened, and what a success it was...
Evolution
The Fall and Rise of Protoichthyosaurus
Are the rumors true? Is an obscure British ichthyosaur, named in 1979 and all but forgotten, really back from the trash bin of synonymy? Well, let’s find out...
Biology
For Rodent Week, the Gift of Jerboas
They jump, they’re variously very large and very small, and they have very weird feet...
Evolution
Darin Croft's Horned Armadillos and Rafting Monkeys
At last, a weighty, comprehensive, beautifully illustrated volume on the amazing extinct mammals of South America’s geological past...
Biology
Secretary Birds: Weird, but Actually Not That Weird
You know it as the secretary bird—as one of the most aberrant of raptors. Is it really that unusual compared with the rest of its clan? Yes. But also no...
Blog Index
@ScientificAmerican
STAFFBehind the scenes at Scientific American
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Anecdotes from the Archive
STAFF
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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
STAFF
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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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Guest Blog
Commentary invited by editors of Scientific American
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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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Life, Unbounded
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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