By simulating the movement of two continent-sized Big Lower-Mantle Basal Structures, or BLOBs, researchers may have uncovered ...

The ends of the world : volcanic apocalypses, lethal oceans, and our quest to understand Earth's past mass extinctions / Peter Brannen Smithsonian Libraries and Archives. Object Details author ... "A ...

According to John Wiens at the University of Arizona (see “There’s growing evidence the big five mass extinctions never happened”) and others, avoiding a textbook extinction could still be ...

In the first and only reconstruction of ocean pH ever carried out, new research from the University of St Andrews and the ...

A mass extinction event is quite different. Here, ... It was a highly significant event and is classed as one of the ‘Big Five’ mass extinctions of the Phanerozoic Eon.

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

Ancient fossils show how the last mass extinction forever scrambled the ocean’s biodiversity By Stewart Edie , Smithsonian Institution Updated June 16, 2025 10:04 a.m.

In its 4.5 billion year history, Earth has undergone five mass extinctions and we are potentially in a sixth era of mass death. Today’s crocodylians are the surviving members of a lineage called ...