The black mamba is also Dendroaspis polylepis, is a species of highly venomous snake belonging to the family elapidae.They are Africa's longest venomous snake reaching up to 14 feet in the length, although 8.2 feet is more the average. They are also among the fastest snakes in the world. Slithering at speeds of up to 12.5 miles/hour.The bite of a black mamba can cause collapse in humans within 45minutes. Without appropriate anti-venom treatment symptoms typically process to respiratory failure, which leads to curdiovascular collapse and death