changing vegetation and human hunting on this mass extinction. We are focusing on extinct species from Europe and northern Asia, along with some from North America, including: We are using large ...

when extinction rates sharply exceeded background rates. These occurred at the end of the Ordivician, the Late Devonian, the Permian/Triassic (P/Tr) boundary, the end of the Triassic, and the ...

Surviving The Sixth Extinction: Are we too late? Of all the species that have ever existed on Earth, 99% of them are gone. Most of those were wiped out during what are known as "Mass Extinction ...

or "life oasis," for terrestrial plants during the end-Permian mass extinction, the most severe biological crisis since the Cambrian period. The discovery, led by Prof. Liu Feng, from the Nanjing ...

Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth ... stars—could be ...