The Black Mamba can be the fastest snake.
Some records of seeing mambas going 18 or even 20 miles an hour, but I am not sure.
The Black Mamba’s fangs are 7mm long ( 0.7cm ) long. And there are about 56-98 grams of venom.
It can strike nearly 10ft ( 3m ) per second. And at a time it injects about 21 grams of venom.
The Black Mamba’s teeth are 1.9mm ( 0.19cm ) long.The Black Mamba can grow to 9-14ft ( 2.8-3.5m ) in length. But the baby’s of the Black Mamba are only 3ft ( 1m ) long, when they are 2 days old.