Tag Archives: evidence

Scientists rush to freeze plant DNA before ‘sixth extinction’ – BBC News

By Jane O’Brien, BBC News, Washington | July 9, 2015 As the world enters into a sixth great extinction, scientists are racing against the clock to save genetic evidence from plants around the world. An ambitious project launched Wednesday to collect the genomes of the planet’s major plant groups within the next two years and put them into deep freeze. The project is part of the Global Genome Initiative, which aims to gather and preserve the DNA of all life on Earth in cryo-storage …

The role of species competition in biodiversity

… the ultimate demise of two extinct canid subfamilies. They theorize that the competitive processes driving these extinctions are more prevalent in species diversification than previously believed. The study is published in the Proceedings of the National Academy of Sciences. The North American fossil record provides abundant evidence for the evolutionary history of the dog family Canidae and of other major carnivores. The researchers analyzed around 1,500 fossil occurrences for 120 canid species …

We’re re-engineering the entire biosphere | News24

Andreas Wilson-Späth | July 6, 2015 An alien geologist visiting earth millions of years from today, after the demise of the human species, will identify among the planet’s rock strata distinct layers bearing the petrified evidence of our doings during our brief presence here. That, in a nutshell, is the idea behind the Anthropocene Epoch, the proposed new geological period we’re busy living through. Researchers distinguish between two main phases in the evolution of the …

Fossil Confirms Tropical Climate in North America

By Irina Slav | July 5, 2015   The 48-million-year-old fossil of a basilisk has presented further evidence in support of the hypothesis that the climate in what is today Wyoming used to be tropical. The fossil belongs to an animal very similar to modern Jesus lizards, a group of species that lives near the equator, in central Mexico and northern Columbia. The scientist who studied the fossil, Jack Conrad, is a research associate of vertebrate palaeontology at the American Museum of Natural …

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