A pregnant Tyrannosaurus rex that roamed Montana 68 million years ago may be the key to discerning gender differences between theropod, or meat-eating dinosaur, species.
A ground breaking new book brings together two of the major disciplines behind the popular film franchise Jurassic Park, with the aim to raise the profile of insect fossils through stunning photographs and unique illustrations.
An animal once thought to have disappeared from North America before the arrival of humans might have actually roamed the continent longer than previously thought-and it was likely on the list of prey for early humans, researchers from the University of Arizona and elsewhere have found.