Extinction is the process in which groups of organisms die out. If over an extended period of time the birth rate of a species is less than the death rate, then extinction will eventually occur.
Extinction is a natural phenomenon predicted by Darwin in his theory of evolution. A species goes extinct if it is not able to adapt to changes in it’s environment, or compete effectively with other organisms.
Over the history of the earth over 99% of all the species that have ever lived have gone extinct.
It’s sad, but reality………..