Coprolites, or fossil droppings, of the dinosaur-like archosaur Smok wawelski contain lots of chewed-up bone fragments. This led researchers at Uppsala University to conclude that this top predator was exploiting bones for salt and marrow, a behavior often linked to mammals but seldom to archosaurs. Credit: Martin Qvarnström

The 210-million-year-old Smok was crushing bones like a hyena

A model for the compositional evolution of the early Earth's crust due to fractional crystallization of impact melt sheets followed by detachment and sinking of their dense primitive portions towards the crust-mantle boundary. Credit: Rais Latypov

Ancient asteroid impacts played a role in creation of Earth’s future...

This is a view of Coalcliff in New South Wales, Australia, where researchers discovered evidence that Earth's largest extinction may have extinguished plant life nearly 400,000 years before marine animal species disappeared. Credit: Christopher Fielding

Earth’s largest extinction event likely took plants first

Grand Canyon

How predatory plankton created modern ecosystems after ‘Snowball Earth’

The central Andes Mountains and surrounding landscape, as seen in this true-color image from NASA’s Terra spacecraft, formed over the past 170 million years as the Nazca Plate lying under the Pacific Ocean has forced its way under the South American Plate. Credit: NASA

Earth’s continental nurseries discovered beneath mountains

A slab containing fossils of Antarctanax. Credit: Copyright Brandon Peecook, Field Museum

Iguana-sized dinosaur cousin discovered in Antarctica

These are well preserved footprints of the find site in Morocco, with clearly visible claw impressions. Credit: The Society of Vertebrate Paleontology

Long-necked dinosaurs rotated their forefeet to the side

Carbon dioxide emissions can be securely stored in underground rocks, with minimal possibility of the gas escaping from fault lines back into the atmosphere, research by the University of Edinburgh has shown. Credit: Johannes Miocic

Fault lines are no barrier to safe storage of CO2 below...

University of Houston researchers John Suppe, left, Jonny Wu and Yi-Wei Chen have reconstructed the ancient plates under the Andes Mountains. Credit: University of Houston

Scientists reconstruct ancient lost plates under Andes mountains

Complete fossil and line drawing of Eretmorhipis carrolldongi.

A reptile platypus from the early Triassic

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