DNA

Ravens turn evolution on its head

April 5, 2018

Two lineages of the common raven (Corvus corax) in western North America have been fusing for thousands of years, researchers found, in what they say is one of the ...

Earth had extra giraffe species all along

September 16, 2016

Earth boasts four separate species of giraffe, not one, as scientists formerly believed, according to new research. To untangle the giraffe lineage, researchers ...
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