Because of loss of habitat
Human activity and pollution will probably be the greatest cause of elephant extinction.
poaching.
What_may_cause_a_lion_extinction
the human been of course
Older cheetahs.
ppls shooting them i guess?
pollution food loss,etc
pollution
The IUCN lists cheetahs in general as Vulnerable while the Asiatic cheetah and Northwest African cheetah subspecies are both Critically Endangered. In both cases, cheetahs are threatened with extinction.
The factors that generally cause mass extinction are changes in the natural ecosystem of the species. This may make it difficult for the species to reproduce and to stay alive.
There is no evidence that any aliens exist so it is impossible to say how they may cause extinction.
The extinction of animals is caused by humans killing animals. Extinction of animals may also be caused by pollution or forest fires that are killing off the plants and trees.