... ). The research marks the first time scientists have dissected the structure of an entire population of extinct mammal by using the complete mitochondrial genome -- all the DNA that makes up all the ...
... to believe in a massive extinction event. Now, the discovery of fossilized dinosaurs and eggshells in northeastern Russia supports the theory of a rapid extinction some 66 million years ago.
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LEIPZIG, Germany, April 1 (UPI) -- A team of German, Russian, Austrian and South African scientists says the Earth's largest mass land extinction might have been caused by giant salt lakes.
SANTA FE, N.M., April 28 (UPI) -- A U.S. scientist says he's found evidence dinosaurs may have survived for 500,000 years in New Mexico and Colorado after the Cretaceous extinctions.
(PhysOrg.com) -- Were major extinction events real biological catastrophes or were they merely the result of gaps in the fossil record? Research by a team of geologists from the Universities of ...
Dinosaur extinction has often been
traced to a giant space rock impact on the Earth 65 million years
ago. But now a scientist says the wrong impact has been
blamed, causing new debate.
... rare—occur in periods of very warm climate, which means that this research could not only help prove a mass-extinction theory, but also help scientists studying the effects of global warming.
PRINCETON, N.J., Dec. 15 (UPI) -- A U.S. geosciences professor says dinosaurs died gradually from climate change caused by volcanic eruptions in India and not because of a meteor strike.
... mission … New B cell lymphoma therapy is presented … Study: Collagen VI can protect against AD … Another dinosaur extinction theory offered ... Health/Science news from UPI.
The discovery of microscopic diamonds in 12,900-year-old soil supports the controversial idea that comet swarms caused a die-off of ice age mammals, a new study says.
PRINCETON, N.J., May 5 (UPI) -- U.S. geoscientist Gerta Keller says she's compiled conclusive evidence that a meteorite did not wipe out the dinosaurs.
... , burrowing may have allowed some dinosaurs to survive extreme environments – throwing a wrench in some extinction theories.
'Where luck meets preparation'
A year after the Montana find, Martin ...
