1 The Depo-ProveraÂ® shot is very effective in preventing pregnancy. 2  It is important to get your shot every 13 weeks (3 months).  Periods can be heavier initially, and then lighter, or absent while on Depo-ProveraÂ®.
there are three animals close to being extinct wich are the polar bears, tigers and dolphins but dolphins are probably the closest one to becoming extinct. hope we ansered you â¦ r question. Jake Wayne
A Barbary lion from Algeria, 1893. An animal is considered extinct when there are no more living species. Any animal listed as endangered on the IUCN Red List is at risk of becoming extinct in the future. Several factors lead to species extinction, including: hunting, habitat destruction, and climate change.