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
The bison is the heaviest land animal in North America and can run up to 65 kilometers per hour (40 miles an hour). During the 19th century American settlers killed up to 50 million bison causing their near extinction (they were hunted for various reasons, among them was that their tongue was considered a delicacy).