Small particles trapped in minuscule cracks or pits in the teeth of plant-eating dinosaurs could give scientists a way to identify the types of greenery the ancient herbivores were munching. (p. 248)

A tangled heap of bones and bone fragments in the bottom of an unhatched elephant bird egg may soon be reassembled into a model of the long-dead embryo, thanks to high technology—and scientists won't even have to crack open the egg to do it. (p. 248)

Newly discovered fossil skulls of juvenile Triceratops may help reveal how the dinosaurs grew their three trademark horns. (p. 248)

Excavations at North America's largest Kitter Litter mine have yielded fossils of ancient aquatic reptiles, as well as evidence of a tsunami generated by the extraterrestrial impact that killed off the dinosaurs about 65 million years ago. (p. 248)

A diminutive lemur species inhabited what is now central Pakistan about 30 million years ago, a new fossil find suggests. (p. 245)

Paleontologists have unearthed the remains of what they believe could be the largest flying creature yet discovered—a 12-meter-wingspan pterosaur. (p. 231)

Scientists have used the principles of quantum physics to answer the long-standing puzzle of why seismic waves travel at different speeds in different directions across Earth's inner core. (p. 191)

Scientists say that a narrow region that rims the southern edge of the Tibetan Plateau could be the spawning grounds for large earthquakes that could threaten millions in southern Asia in the decades to come. (p. 191)

Ocean-floor sediments drilled from Antarctic regions recently covered by ice shelves suggest that those shelves were much younger than scientists had previously thought. (p. 150)

When paleontologists unearthed the skeleton of a 70-million-year-old titanosaur in Madagascar in the late 1990s, they also recovered something that had been missing from previous such finds: a skull that matched the body. (p. 143)

The impressions near Isona, Spain, long thought to be fossilized dinosaur footprints may actually record the feeding behavior of stingrays. (p. 143)