Coluber constrictor
Extremely fast, diurnal snake known for its 'periscoping' behavior. While the scientific name suggests constriction, it typically pins prey down rather than using true constriction.
FamilyColubridae
GenusColuber
RegionNorth AmericaNorth America
Northern Black Racer
Lethality weighted 55% (potency × yield). Clinical weighted 45% (real-world CFR).
Multiplicative scalers - amplify or reduce existing danger, can't create it from nothing.
Speed = antivenom window. Delivery = fang efficiency. Encounter = exposure × temperament.