Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's severe ...

A couple of times in four billion years, evolution has slowed to a crawl. And an eon or so has passed before more complex life forms, such as simple animals, could arise. Evolution may have been ...

Ancient species may have evolved more slowly and lasted longer, but the pace of evolution picked up after global ice ages, according to a new study from Virginia Tech. Published in the journal Science ...

This trilogy consists of 3 x 30 HD episodes that cover the history of our planet and the most ancient life on it during the Hadean, Archean and Proterozoic eons (from 4.6 billion years ago until 500 ...

Time to smash the beaker when thinking about oxygen concentrations in water, at the time when animal life first evolved. Oceans stacked oxygen here and depleted it there, as a new novel model ...