Costa Rica
The Fer-de-Lance was called "The Velvet Killer" in a National Geographic article because it is responsible for 80% of all snake bites in Costa Rica. Worldwide 10% of people bitten by it die. But in Costa Rica only .5% die because the toxin is available at clinics within 1-4 hours of any place in the country. The Fer-de-Lance hunts in armadillo holes, coffee fields and forests. No tourists have died because the guides warn all hikers to avoid grabbing tree trunks or reaching under rocks. Farm workers are its primary victims.