Youngsters were in awe of the huge moving dinosaurs they could interact with this weekend at Jurassic Quest in Amarillo.

A fossilized skull and jawbones found in Niger belonged to a creature that had a large, bony crest atop its head and lived some 95 million years ago.

Techniques developed to study the distant past—from dating ancient artifacts to reconstructing climate records in ice cores—are now being repurposed to help us better understand the lives of modern ...