The hunting business has great influence on the survival of wild animal populations. Its large profits can promote conservation and provide a welcome economic boost to poverty-stricken nations; however, the industry is far from self-regulating. Irresponsible practices such as cross-species breeding and excessive hunting have been known to endanger individual animal species along with their entire habitat. Meanwhile, poaching is a dire problem in Africa and southeast Asia, driven by cultural demand for exotic foods, medicines and ornaments, all coming from endangered and threatened species. In 2011 alone, 23 tons of illegally harvested ivory were seized in transit from Africa to Asia, indicating the death of about 2,500 elephants. Poaching poses extreme danger to the survival of many other species as well, especially tigers, rhinos, pangolin and shark.