Scientists have made new discoveries about the origins of dinosaurs, suggesting they first emerged in dry, arid regions of ...

The sixth extinction, also known as the Anthropocene extinction, refers to the ongoing, unprecedented loss of species. Unlike previous mass extinction events in Earth’s history, which were driven by ...

came together in a December technical report to argue that ongoing work on mirror bacteria could trigger a mass extinction. The catastrophe it warns about is plausible, if mind-bending.