During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...
Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...
A new analysis of enigmatic skulls from the Republic of Georgia suggest that Homo erectus wasn't the only human species to ...
A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.
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