Not only are there risks in terms of genetic engineering, but there are risks that emerge from species hybridization. In Czechoslovakia, ibex were introduced from Turkey and Sinai to help promote the ibex population there, which caused hybrids that produced offspring too early, which caused the overall population to disappear completely. The genes of each population of the ibex in Turkey and Sinai were locally adapted to their environments so when placed in a new environmental context did not flourish. Additionally, the environmental toll that may arise from the introduction of a new species may be so disruptive that the ecosystem is no longer able to sustain certain populations.