University of Alberta paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-metre-long T. rex, nicknamed 'Scotty,' lived in prehistoric Saskatchewan 66 million years ago.
Using their own laser imaging technology, Dr Michael Pittman from the Department of Earth Sciences at The University of Hong Kong and Thomas G Kaye from the Foundation for Scientific Advancement in the USA determined the lifestyle of a special hatchling bird by revealing the previously unknown feathering preserved in the fossil specimen found in the ~125 million-year-old Early Cretaceous fossil beds of Los Hoyas, Spain.
Researchers have discovered an early Cambrian fossil assemblage located along the bank of the Danshui River in China.
One of the ocean's little known carnivores has been allocated a new place in the evolutionary tree of life after scientists discovered its unmistakable resemblance with other sea-floor dwelling creatures.
Ohio University researchers announced a new species of mammal from the Age of Dinosaurs, representing the most complete mammal from the Cretaceous Period of continental Africa, and providing tantalizing insights into the past diversity of mammals on the planet.
UMD biologist finds alligators build neural maps of sound the way birds do, suggesting the hearing strategy existed in their common ancestor, the dinosaurs.
One of the things that makes mammals special is our diverse forelimbs -- bat wings, whale flippers, gibbon arms, and cheetah legs have evolved to do different, specialized tasks. Scientists wanted to see where this mammalian trait started evolving, so they examined fossils from early mammal relatives to see when the upper arm bones started diversifying. They discovered that the trait took root 270 million years ago -- 30 million years before the earliest dinosaurs existed.
An international study co-led by researchers from the Spanish National Research Council (CSIC) at the Institute of Evolutionary Biology (IBE) and Harvard University (USA) has developed a genetic map of the Iberian Peninsula covering the last 8,000 years.
'Great Dying' extinction survivors appear to have shared many of the same ecological roles as their predecessors, with one catch -- there was a surge in the number of individuals with more modern traits. These hardy stand-outs did a better job of driving recovery, making ongoing ecological interactions more intense. Insights into this ancient marine system and its occupants can help guide modern conservation in identifying Earth's most resilient species in the face of environmental stress.
When UC Santa Barbara geology professor emeritus James Kennett and colleagues set out years ago to examine signs of a major cosmic impact that occurred toward the end of the Pleistocene epoch, little did they know just how far-reaching the projected climatic effect would be.