Étiquette : early

Early plate tectonics was surprisingly speedy

Early plate tectonics was surprisingly speedy

Have tectonic plates changed speed over the last three billion years? The answer has far-reaching implications, as plate tectonics affected everything from the supply of vital nutrients for early life to the rise of oxygen. We know Earth’s interior was hotter early in its history, but did plates move faster […]

UN force in Mali quits base early over insecurity

UN force in Mali quits base early over insecurity

DAKAR: The UN peacekeeping mission in Mali on Sunday said it had brought forward its withdrawal from a base in the north of the country due to deteriorating security conditions. During the operation, three of its soldiers were wounded when they came under fire, the force added a few hours […]

Key role of ice age cycles in early human interbreeding

Key role of ice age cycles in early human interbreeding

A study published in Science indicates that climatic shifts over the past 400,000 years have influenced Neanderthal and Denisovan interbreeding. Recent paleogenomic research revealed that interbreeding was common among early human species. However, little was known about when, where, and how often this hominin interbreeding took place. Using paleoanthropological evidence, […]

A climate-orchestrated early human love story

A climate-orchestrated early human love story

A new study published in the journal Science by an international team finds that past changes in atmospheric CO2 and corresponding shifts in climate and vegetation played a key role in determining when and where early human species interbred. Modern-day people carry in their cells a small quantity of DNA […]