clipped from: brianlean.wordpress.com 
There are 2,700 species of snake in the world. They come in 2,000 ways & colors.
There are 100 species of dangerous & venomous snakes that can kill you.
The Giant Python could grow to 20feet (6meter). But 188 species are known to kill a human being.
In the pools the Anaconda can swim very well. They can strike up 23feet (7meters) per second. Imagine I can only strike 4feet (1.2meter) per second.
The Black Mamba can move at speeds of 18mph (24kph).
You don’t think the sidewinder is slow. It can move at 16-20kph (12-14mph). The Green Mamba can also move at 19- 21kph (13-15mph).
The Slowest snake is the Rough Scaled snake ( a kind of tiger snake) it moves at 3-7kph (1-3mph).
The Yellow Rat snake can be 7feet (2.1meters) long.
The African Python grew to 7.8meters (25feet 8inch). The record length of African Pythons is 9.78meters (31feet) long. But the Green Anaconda which weighs 400kilograms (900pounds) record length is 12.2meters (37feet 4inches).