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.
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
It is an poke event you might get it or might not
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.
walk or drive you might have to buy tickets depending on what the event is
it might have played with the extinction of animals because of new habitats and some animals can't adapt.