Black Mamba (Dendroaspis polylepis)

Native to the savannas and rocky hills of sub-Saharan Africa, the Black Mamba is universally dreaded for its explosive speed (up to 20 km/h) and massive venom delivery. Injecting up to 400 mg of venom in repeated lightning strikes (where 10-15 mg is fatal to humans), its dendrotoxins block potassium channels, paralyzing motor nerves and causing 100% human mortality within hours if untreated. Possesses a historic 100% untreated fatality rate, pairing blistering speed with massive 400mg venom loads. Ranks #8 beneath Deathstalker on pure molecular LD50 (0.28 vs 0.20 mg/kg), but crushes Saw-Scaled Viper in speed and sheer strike volume: a single bite delivers enough venom to kill 15-20 men, resulting in a historical 100% fatality rate before antivenom.