To evaluate these proposed explanations for the biotic changes observed at the Ediacaran Cambrian transition, environmental drivers leading to global mass extinction are compared to biological factors such as predation and ecosystem engineering.
We evaluated the performance of rate shift detection by Medusa, or of mass extinction events by TreePar, by comparing the events detected to the relevant simulated events.
In e, new species exhibit both increases and decreases in the trait compared to their ancestors, but two mass extinction events have occurred (dashed lines) that affected groups with lower values much more than those with higher values.
They compared the shell sizes of species that survived a mass extinction event to the shell sizes of those that perished and found that size didn't make much of a difference in a species' chance of surviving (Fig. 2).
He sometimes asks people to imagine the outrage that would occur if someone were to destroy, say, the Vatican or the "Mona Lisa," and he compares that with the indifference that people exhibit toward the mass extinction of plants and animals.
Regarding this scenario, we also compared simulations where all lineages undergo an increase of diversification after the mass extinction event against those who undergo a decrease and observe no difference between the outcomes of the two frameworks.
Biblical Armageddon parallels mass extinction.
A sixth mass extinction, therefore, is beginning.
The human race faces mass extinction".
