With a top speed of about 12 mph, this deadly African snake is said to be the world's fastest serpent
..... mamba has the highest mortality rate in the world due to its 
fast acting venom... [DOC] [TLE] Dendroaspis polylepis - Black Mamba (Africa's Most Feared Snake ... [PAR] Black Mamba - the world's second longest venomous snake and the fastest 
snake on ... One of the most dangerous snakes, the mamba's venom is believed 
to have .....