The longest fangs of any snake are those of the highly venomous gaboon viper (Bitis gabonica) of tropical Africa. In a specimen of 1.83 m 6 ft length, they measured 50 mm 2 in.
The gaboon viper (Bitis gabonica) is considered to produce more venom than any other venomous snake. A single adult male may have enough venom to inject lethal doses into 30 individual men. Not only do they produce more venom than any other snake but they also inject more deeply. Although sluggish and docile by nature, Gaboons are unpredictable and capable of great speed in short bursts making them extremely dangerous. A single bite victim reported in Switzerland was bitten in the chest and died one and a half hours later from the massive doses of venom injected into his system. Signs of Gaboon envenomation include hypotension, internal hemorrhaging, cardiac arrest and spontaneous bleeding.