Researchers believe they may have worked out why giant trevally swim upstream in the Mtentu Estuary and circle in vast ...
Thousands of years before the invention of compasses or sails, prehistoric peoples crossed oceans to reach remote lands like ...
About 700 million years ago, Earth was entombed in a veneer of ice hundreds of feet thick—a frozen state scientists refer to as “Snowball Earth.” Oceans cooled but managed to retain some heat to avoid ...
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