A newfound dinosaur seems to wear its heart on its tail, according to paleontologists who found the enormous beast and realized this "hopeless romantic" had heart-shaped tail bones.
Different species of duck-billed dinosaurs may have "tooted" different notes out of their trumpet-like, tubular crests, new research shows.
Ancient organs rarely fossilize, so paleontologists were stunned to find the incredibly well-preserved remains of a lung that belonged to bird from the dinosaur age, a new study finds.
About 85 million years ago, when a vast sea covered Kansas, a wee, little sea monster died almost immediately after it was born.
When paleontologists in Utah first dug up the fossil of a spiky-skulled ankylosaur in Utah, they were perplexed.
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