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 new study led by researchers at Yale and McGill University reveals how fluctuations in the Earth’s oxygen levels over 700 million years ago may have set the stage for the diversification of ...

Geologists have added a new period to their official calendar of Earth's history - the first in 120 years. The Ediacaran Period covers some 50 million years of ancient time on our planet from 600 ...

Awareness of the global warming effects of carbon dioxide (CO 2) is relatively recent, but the greenhouse gas has been playing a critical role in warming our planet for billions of years, according to ...