Add Yahoo as a preferred source to see more of our stories on Google. Ancient glaciers reshaped Earth’s surface and shifted ocean chemistry, fueling the rise of complex life, a new study found. Calved ...

About 800 million years ago (mya), before the supercontinent Pangea formed, the Earth was more diverse than classical theory suggests. By reconstructing the tree of life from the evolutionary history ...

These layered structures called stromatolites from the Cryogenian Trezona Formation were created by biofilms of microbes that formed in a shallow-water tropical environment in South Australia’s ...

A widespread biotic turnover occurred around the time of the Sturtian glaciation. Microfossil analyses show that one regional extinction pre-dates the glacial advance, challenging the more severe ...

Thanks to global carbon-cycle feedbacks, the Earth may have escaped global glaciation during the Neoproterozoic era, enabling photosynthesis to continue. A drawdown of oxygen into the ocean in rapidly ...

Scientists have been mystified as to why animals are missing in much of the fossil record; Researchers have developed a new method to determine if animals really were absent during certain geological ...

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