Fossils shake dinosaur family tree

(PhysOrg.com) -- Paleontologists have unearthed a previously unknown meat-eating dinosaur in New Mexico, settling a debate about early dinosaur evolution, revealing a period of explosive diversification and hinting at how ...

Were dinosaurs destined to be big? Testing Cope's rule

In the evolutionary long run, small critters tend to evolve into bigger beasts—at least according to the idea attributed to paleontologist Edward Cope, now known as Cope's Rule. Using the latest advanced statistical modeling ...

For some feathered dinosaurs, bigger not necessarily better

Every kid knows that giant carnivores like Tyrannosaurus rex dominated the Cretaceous period, but they weren't the only big guys in town. Giant plant-eating theropods – close relatives of both T. rex and today's birds – ...

Tracking Australia's dinosaur past

The Australian outback. Known for a few, very specific things. Kangaroos. Sand. Lots of animals that want to kill you. More sand. Paul Hogan. And dinosaurs!

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