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Extinction of Icelandic walrus coincides with Norse settlement(图)
Extinction Icelandic walrus Norse settlement
2019/10/18
Scientists used ancient DNA analyses and carbon-14 dating to demonstrate the past existence of a unique population of Icelandic walrus that went extinct shortly after Norse settlement some 1,100 years...
amounts of erupting lava are connected to the destruction of supercontinents and dramatic changes in climate and ecosystems.
New research from UC Davis and Aarhus University in Denmark shows that hig...
New research from UC Davis and Aarhus University in Denmark shows that high mantle temperatures miles beneath the Earth’s surface are essential for generating such large amounts of magma. In fact, the...