Search Results for: Dinosaurs
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1,961 results for: Dinosaurs
- Life
Dinosaurs broiled, not grilled
Debris from K-T impact could have been heat source and heat shield.
- Life
Life
A look at killer dolphins, plus hibernating plankton, growing mammal brains and more in this week’s news.
By Science News - Paleontology
An ammonite’s last supper
A detailed X-ray image of a fossil reveals an ancient marine creature’s diet.
- Life
Groovy teeth suggest dinosaur was venomous
Fossils show depression in upper jaw that held venom-producing glands.
By Sid Perkins -
Letters
Yawn and open your ears I read with interest your article on yawning (“Yawn,” SN: 5/7/11, p. 28). Over the years I have formulated a private theory on at least one of the reasons why we yawn and would like to share my speculations with your readership. My insight essentially began when I noticed that […]
By Science News - Paleontology
Dinos molted for a new look
In one species, adolescents appear to have sprouted a new type of feathers as they matured.
By Sid Perkins -
2010 Science News of the Year: Earth
Credit: Alvaro Ybarra Zavala/Getty Images Inside the Haiti quake Some 230,000 Haitians died when a magnitude-7 earthquake struck just outside Port-au-Prince on the afternoon of January 12. Scientists from around the world scrambled to the scene (SN Online: 1/16/10) to assess which fault had ruptured and whether more people were at risk. Early ideas held […]
By Science News - Earth
Extinctions breed carbon chaos
Massive die-off left ecosystems vulnerable, an analysis suggests.
- Paleontology
Tyrannosaurs lived in the Southern Hemisphere, too
Australian fossils suggest the kin of T. rex dispersed globally 110 million years ago.
By Sid Perkins - Life
Just warm enough
Mammals may have evolved a characteristic body temperature to avoid fungal infections without burning too hot.
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Dinosaur Odyssey: Fossil Threads in the Web of Life by Scott D. Sampson
The past three decades have seen a plethora of major discoveries, described here, about dinosaurs and prehistoric Earth. DINOSAUR ODYSSEY: FOSSIL THREADS IN THE WEB OF LIFE BY SCOTT D. SAMPSON University of California Press, 2009, 332 p., $29.95.
By Science News - Paleontology
Feather-covered dinosaur fossils found
Scientists have uncovered a feather-laden, peacock-sized dinosaur that predates the oldest known bird.
By Sid Perkins