Special Report There are approximately 3,000 species of snakes in the world, according to National Geographic. Of these, about 600 are venomous, and 200 of them are a threat to human safety, with bites that can lead to illness and death. The deadliest of these is the inland taipan, native to east-central Australia. The World Health Organization reports that about 5 million people are bitten by snakes each year. Between 81,000 and 138,000 of those people die. Young people and children are particularly at risk, as are agricultural workers, hunters and fishermen, and others who work outdoors. ( These are the most dangerous jobs in America .) The London-based safari information site Safaris Africana has compiled a list of the most venomous snakes in the world. The company notes that there are several ways to measure lethality, among them the amount of venom dose needed to kill one person, the numbe...