Showing posts with the label
North America
Based on the analysis of fossil teeth conducted by researcher Alejandro Romero, from the University of Alicante's Departament of Biotechnology, a study shows that short-faced bears (Arctodus simu…
Imagine that you're a voracious carnivore who sinks its teeth into the tail of a small reptile and anticipates a delicious lunch, when, in a flash, the reptile is gone and you are left holding a …
For nearly two decades, scientists have noted dramatic changes in arctic tundra habitat. Ankle-high grasses and sedges have given way to a sea of woody shrubs growing to waist- or neck-deep heights. …
An unexpected discovery by a fossil hunter diving a quarter-mile off Manasota Key near Venice, Florida, has led to a groundbreaking archaeological project that could change everything scientists thou…
A team of scientists including researchers from Washington State University has shown for the first time that nicotine residue can be extracted from plaque, also known as "dental calculus,"…
Chris Rodning, the Paul and Debra Gibbons Professor in the Tulane School of Liberal Arts’ Department of Anthropology, unravels early entanglements between Native Americans and European explorers, rev…
A University of Pennsylvania paleontologist has described a 5.5 million-year-old fossil species of turtle from eastern Tennessee. It represents a new species of the genus Trachemys, commonly known as…
The vestiges of lakes long extinct dot the landscape of the American desert west. These fossilized landforms provide clues of how dynamic climate has been over the past few million years. Erosional P…
Referred to as ‘perplexing’, a group of North American Pleistocene horses have been identified, until now, as different species. Now mitochondrial and partial nuclear genomic studies support the idea…
A fossilized trackway on public lands in Lake County, Oregon, may reveal clues about the ancient family dynamics of Columbian mammoths. Footprints of mammoths, dated to 43,000 years ago, are seen in …
Researchers at the University of Birmingham have discovered that the mass extinction seen in plant species caused by the onset of a drier climate 307 million years ago led to extinctions of some grou…
New research led by the University of Colorado Boulder shows that the changing topography of ice sheets in the Northern Hemisphere during the last Ice Age forced changes in the climate of Antarctica,…
The ancient Greeks could have reached Canada in 56 AD - almost a millennium before the Vikings. This is according to a controversial study that claims during the Hellenistic period Greeks had such de…
On a ho-hum day some 12,800 years ago, the Earth had emerged from another ice age. Things were warming up, and the glaciers had retreated. Out of nowhere, the sky was lit with fireballs. This was fol…
Archaeologists are a little like forensic investigators: They scour the remains of past societies, looking for clues in pottery, tools and bones about how people lived, and how they died. University …
University of Wyoming researchers led a climate study that determined recent temperatures across Europe and North America appear to have few, if any, precedent in the past 11,000 years. Little Pond, …
