The sixth extinction taking out species at a rate and magnitude rivaling the event that took out the dinosaurs presents a conceptual logjam.
A wise Latina woman with the richness of her experiences would more often than not know that a gaggle of white Republican men afraid of extinction are out to trip her up.
"Transformers: Age of Extinction" is out on June 27.
This rock deposit is a natural time capsule from the Late Cretaceous Period, just before a mass extinction wiped out the dinosaurs.
The strike may have been part of an asteroid impact cluster which caused an era of mass extinction, wiping out primitive coral reefs and other species, added Glikson, co-author of a study published in the journal Tectonophysics.
In the fossil record, mass extinctions stand out, so sharply that the very language scientists use to describe the earth's history derives from them.
Buy from Amazon.com; Amazon.co.uk Five previous extinctions wiped out plant and animal life on a huge scale; now a sixth is upon us.
It would be ironic, indeed, if Dr Becker's Australian crater, on the face of things such eloquent evidence for the extraterrestrial nature of mass extinctions, turned out to be a crucial nail in that theory's coffin.
"Researchers are still trying to understand what happened there after cataclysmic extinctions wiped out scores of plants, reptiles, insects, and amphibians" at the end of the Triassic.
This, in turn, would kill us all just as other mass extinctions wiped out life on earth during similar ruptures 251 million years ago and 55 million years ago.
