Wildlife can be found all throughout deserts, grasslands, plains, rain forests, and other regions that are well developed urban sites. The wildlife underwent drastic changes since our exodus from Africa some 130,000 to 70,000 years ago. According to conservationists, the killing of certain animal species has been high so much that many became extinct in the last 100 years. Some of the forefront reasons of their extinction are fragmentation, habitat loss, poaching, and overkill.