Ancient DNA pushes herring trade back to the Viking age

Historians have believed extensive herring trade started around the year 1200 AD, later controlled by the Hanseatic League. Now, a new study shows that it was already established in the Viking Age.

New research questions 'whiff of oxygen' in Earth's early history

Evidence arguing for a "whiff of oxygen" before the Earth's Great Oxygenation Event 2.3 billion years ago are chemical signatures that were probably introduced at a much later time, according to research published in Science ...

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