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230 million-year-old dinosaur is oldest ever discovered in North America — and changes what we know about how they conquered Earth
A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how ...
New research reveals why sabre-toothed predators evolved their deadly teeth
Sabre teeth the long, sharp, blade-like canines found in extinct predators such as Smilodon represent one of the most extreme dental adaptations in nature. They evolved at least five times throughout ...