How do you become endangered?
Mankind over hunts you or over collects you for his own use. then mankind destroys your habitat and food sources as well as pollutes your water sources. you are then endangered!
An extinctt animal cannot be endangered. Do you mean how an endangered animal becomes extinct? Endangered animals become extinct by various reasons. It depends what animal it is. Most animals are killed by humans, or habitats destroyed. E.G: Tigers have become endangered because of poaching, and if this continuses, then they will become extinct. Animals become extinct becuase of a particular reason, which makes them endangered, then if carried on, extinct.