Black mamba

The black mamba is a long, fast-moving venomous snake found in sub-Saharan Africa. Though its scales are gray or brown, it gets its name from the inky-black lining of its mouth. It's one of the longest venomous snakes, often reaching over 2 meters.

• Can grow up to 4.5 meters long, though most adults are around 3 meters.
• Shows the dark inside of its mouth as a warning when threatened.
• Young snakes are lighter in color and darken as they age.