Marco Cattaneo looks at boulder 0, the first boulder found with footprints. Beneath the snowy slopes lay a prehistoric surprise: an ecosystem that predates the dinosaurs, revealed by melting snow ...

Tyrannosaurus rex is often seen as the unstoppable king of the dinosaurs, but life in the Hell Creek ecosystem was far from easy. Massive herbivores like Triceratops, heavily armored Ankylosaurus, and ...

Picture a baby Brachiosaurus the size of a golden retriever, hunting for food with its siblings while dodging predators that would happily eat it. Meanwhile, its parents—towering over 40 feet tall—are ...

A reconstruction of a Late Jurassic Dry Mesa Dinosaur Quarry ecosystem around 150 million years ago which shows a diverse array of bipedal theropod dinosaurs including the largest in the ecosystem ...

A lost dinosaur track site in the Saizhurakh area of Mongolia is rediscovered, offering new clues about ancient ecosystems ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Early dinosaurs rose to dominance because they ate a lot of plants.

Dinosaurs weren’t dying out before the asteroid hit—they were thriving in vibrant, diverse habitats across North America. Fossil evidence from New Mexico shows that distinct “bioprovinces” of ...

Beneath the snowy slopes lay a prehistoric surprise: an ecosystem that predates the dinosaurs, revealed by melting snow before being stumbled upon by a hiker in the Italian Alps. The discovery, made ...

An image of University of Maryland geologist Thomas R. Holtz, Jr. holding a baby crocodile, one of the closest living analogs for dinosaurs. Similar to their dinosaur predecessors, crocodiles guard ...

WASHINGTON — It may have been suicidal for a predator to go after a healthy adult Brachiosaurus, a behemoth weighing perhaps 60 tons that was a member of the long-necked group of dinosaurs called ...