Human activity, destruction of environments and human overpopulation. The relese of foreign substances into the biosphere.
Yes, if you are going to save a species then they might as well be saved from extinction.
Population ecologists studying living organisms are interested in mass extinction events because these events dramatically reshape ecosystems and biodiversity, impacting species interactions and population dynamics. Understanding the causes and consequences of such extinctions can provide insights into the resilience and recovery of populations, as well as inform conservation strategies for threatened species. Additionally, analyzing past extinction events helps ecologists predict how current environmental changes might affect species survival and community structure. Overall, these studies contribute to a deeper understanding of ecological balance and the long-term viability of ecosystems.
What might she do after this event in 1873? Might she be discouraged?
It is the fate of most living things eventually to go extinct. standard commonplace rate of extinction not associated with a mass extinction.
120 volts A/C, or some might refer to it as house current.
The basic explanation for the ripple effect is that a sing event causes a number of knock on effects and consequences far beyond the location of the initial event. An example of this might be a tsunami caused by an earthquake under the ocean.
That sounds like heart disease of some kind; it might be atrial fibrillation. In any event, consult your doctor.
A mass extinction would require a very unlikely event such as a major cosmic collision. Even the major extinction event that killed the dinosaurs 65,000,000 years ago left about 1/3 of all species intact. It might require something really, really big, like the collision that created the moon nearly 4,000,000,000 years ago. So, let's say 4 billion to one, at least for this year.
EXTINCTION
I have never known it to be called anything but "The Devonian", but one might speculate it could be called "The First Flowering", as the Devonian was when there was the first massive increase in sea creatures, as well as the first heavy vegetation on the surface of earth. The Devonian ended with a mass extinction event that is still not understood. There is some discussion of the "Alamo Impact Event" being connected with it, but most scientists believe that was too small, and too far before the mass extinction (3.5 million years) to have been the cause.
It is an poke event you might get it or might not
In the fossil record, evidence of a mass extinction would include a significant and sudden decline in biodiversity, with a sharp decrease in the number of species present. There would be a notable increase in the number of sedimentary layers containing fossils of organisms that went extinct during that period. Additionally, the presence of new species appearing after the extinction event might indicate ecological turnover, along with a shift in the types of organisms that dominate the record, reflecting changes in ecosystems.