Natural predators help maintain this delicate balance by killing the weakest and sickest animals. However, hunters kill whatever healthy animals they can find to satisfy their various needs, including killing animals as a form of game, trophy, or the famous poaching of animals for tusks. Poaching of elephants and rhinos for tusks worldwide is believed to have increased the number of tuskless animals in Africa (Whitfield, 2003). Over the past 40 years in Canada, hunting has resulted in antler depletion of bighorn sheep by 25% (Whitfield, 2003). Should animal hunting, particularly poaching, continue globally, the number of animal species would rapidly decline, resulting in the extinction of specific species, such as African rhinos and elephants. A report published in Nature Magazine suggests that decreasing numbers of animals could have an effect on population genetics because weaker animals will pass on weak genes to their offspring causing defects in an entire species. Therefore, it is better for hunters to let nature kill weak and sick animals in order to preserve them