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
With that said, here are 5 animals that have gone extinct in the past 50 years: Baiji River Dolphin. Owing to protocol, the Baiji River Dolphin (Lipotes vexillifer) has yet to actually be declared as being extinct â but, for all intents and purposes, the animal species is now long gone.