Mass extinctions are extremely catastrophic events on Earth. Throughout Earth's evolutionary history, numerous mass ...

At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...

The fossils offer a rare glimpse into a cataclysmic event that brought a sudden end to the greatest explosion of life in our planet's history.

Imagine someone digs you up in 15,000 years and discovers what you had for lunch the day that you died. That’s more or less ...

Tens of thousands of years ago, the first wave of a worldwide tsunami now known as the “Sixth Extinction” swept across the ...

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, ...

The Cretaceous–Paleogene (K–Pg) mass extinction event, marking the boundary between the Cretaceous and Paleogene periods approximately 66 million years ago, stands as one of the most profound ...

Contributed by Kea Giles, Managing Editor, GeologyBoulder, Colo., USA: Mass extinctions are extremely catastrophic events on Earth. Throughout Earth's ...

Speciation and extinction are the twin engines that have sculpted the diversity of life on Earth. Speciation, the process by which new species arise from ancestral populations, is driven by a mixture ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...