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5 December 2013 11:26 am ,
Vol. 342 ,
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
Since arriving on the island of Guam in the 1940s, the brown tree snake ( Boiga irregularis ) has extirpated native...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: Dinosaurs Just Got Taller
30 September 2010 5:00 pm
Dinosaurs just got a bit more intimidating. Researchers have found that Tyrannosaurus Rex may have stood a few centimeters taller than previously thought, and Brachiosaurus—already a colossus at over 13 meters tall—may have towered by another 30 centimeters or so. The reason is that dinosaur legs probably contained thicker pads of cartilage at the bone joints than scientists assumed. Cartilage and other soft tissues generally do not survive fossilization, so in the new study researchers compared dinosaur bones to castings of the dissected bones and joints of alligators and ostriches. They also studied how certain bone features relate to the thickness of cartilage at the joints. Based on those comparisons, the team reports online today in PLoS ONE that theropod (three-toed) dinosaurs such as T. Rex, and the sauropod (lizard-footed) creatures such as Triceratops and Brachiosaurus deserve a lift. Next question: Are taller dinosaurs faster or slower?
See more ScienceShots.