For various reasons. It might be a natural disaster or alteration in the climate, as with the dinosaurs. Many endangered species face loss from over-collection, hunting, loss of habitat or food sources, and climate shifts.
I think it is more cruel to make a animal go extink because then you would not have that animal anymore.
It would not procreate (produce offspring), and if it were the last of its species, it would go extinct.
Humans are the answer! humans caused more animals to go extinct than any other animal.
The whole ecosystem will go extinct. A animal relies on another animal to strive in society.
Don't really understand your question, but I will try. Any animal that still has surviving members is not extinct. An easier answer for you would be to go to your library, and check out books on extinct animals.
because when one animal extinct the animal who eats that animal would maybe or absolutely have no other animal to eat so that animal who eat the extincted animal would become extinct then another then another. So maybe all animals may die.
The animal population would tend to go "extinct" -Dr. Bosch
That is an impossible situation. We are an animal also. What would kill them off would kill us also.
Hi Any animal can became extinct if over hunted (by a person or animal) or die from diseases. The deer is no exception.
All animals reproduce or they would be extinct.
there would only be plants
you can't have an extinct animal living. It can be endangered or close to being extinct, but not extinct.