Terrorists have an incredible arsenal at their hand, for which they have to make minimal efforts and expenses, since it is provided by nature, thanks to biodiversity. Bioterrorism is difficult to combat. In comparison with the general types of terrorist actions against civil society, bioterrorism represents a huge advantage for terrorists. We should give the first priority to the absolute knowledge of biodiversity which offers us the key to the successful actions of combat and prevention of bioterrorism. This paper attempts to unravel the mystery of biodiversity and its applications in bioterrorism.