The top predator of the Jurassic and Cretaceous landscapes was usually a species of meat-eating dinosaur. These predators walked on two legs, had powerful jaws lined with sharp teeth and included species from groups known ...
Paleontology & Fossils
Apr 11, 2022
0
57
A new paper refines estimates of when herbivorous dinosaurs must have traversed North America on a northerly trek to reach Greenland, and points out an intriguing climatic phenomenon that may have helped them along the journey.
Earth Sciences
Feb 15, 2021
10
435
Some of the world's largest, most spectacular and unheralded mammals are silently slipping away, species like Tibetan wild yaks and Patagonia's huemul, Bhutan's takin and Vietnam's saola. Even Africa's three species of zebras ...
Ecology
Jun 9, 2020
0
1633
About 20,000 years ago, large ice sheets loomed over North America, and researchers thought the ice, itself, pushed storms south, drenching the Southwest and leaving the Pacific Northwest dry. Now, a new CIRES-led study finds ...
Earth Sciences
Nov 15, 2021
1
427
The ancient North American city of Cahokia had as its focal point a feature now known as Monks Mound, a giant earthwork surrounded on its north, south, east and west by large rectangular open areas. These flat zones, called ...
Archaeology
Jul 21, 2022
0
307
The researchers combined data across North America and Europe using a meta-analysis, a way of aggregating results from multiple studies to increase statistical strength. They found strong evidence that increased mowing intensity ...
Ecology
Dec 19, 2019
0
1678
An unexpected discovery by an Iowa State University researcher suggests that the first humans may have arrived in North America more than 30,000 years ago—nearly 20,000 years earlier than originally thought.
Archaeology
Jun 2, 2021
4
1101
Humans may have reached the Americas over 30,000 years ago, new research from international teams of scientists shows—a period 15,000 years earlier than previously thought.
Archaeology
Jul 23, 2020
14
4012
A team of researchers from Universidade de São Paulo, Universidade Federal do Rio Grande do Sul and Universitat Pompeu Fabra, has found evidence of a genetic Australasian influence in more parts of South America than just ...
A new description of two well-preserved ancient fossil plant specimens in Washington state is prompting paleobotanists to rethink how plants might have been dispersed during the Late Cretaceous, between 66 million and 100 ...
Paleontology & Fossils
Feb 15, 2022
0
816
