Tag: North America

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Extinct lakes of the American desert west

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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 …

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More light shines on Pleistocene extinction event with possible discovery of new genus of horse

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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 …

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Ancient trail of Columbian mammoths uncovered in south-central Oregon

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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 …

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Rainforest collapse 307 million years ago impacted the evolution of early land vertebrates

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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 …

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North American ice sheet decay changed Antarctic climate

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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 …

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Did the ancient Greeks sail to Canada?

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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 …

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New research suggests toward end of Ice Age, human beings witnessed fires larger than dinosaur killers

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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 …