With studies of fossilized bones, gut contents, eggshells and more, paleontologists revealed new and captivating details ...

In 1989, paleontologist Darren Tanke suggested that similar breaks were the result of mating as one dinosaur mounted the ...

A new study suggests that predatory dinosaurs, such as Tyrannosaurus rex, did not have permanently exposed teeth as depicted in films such as Jurassic Park, but instead had scaly, lizard-like lips ...

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A tiny creature caught in amber 99 million years ago isn’t the smallest dinosaur ever found. It is actually a lizard — albeit a really bizarre one, researchers report June 14 in Current Biology. But ...

Yale scientists have discovered an ancient, small, insect-eating lizard in the badlands of Montana and have named it Obamadon, after President Obama. The lizard, which is less than a foot long and had ...