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
Extinction. 1  The first one is about their incapability of hunting smaller and faster animals. Therefore, when larger species started to go extinct, the saber-toothed tiger perished too. 2  The second hypothesis is associated with climate changes that might have led to the extinction of mammoths and giant deer.