Are all snakes harm full to people?

Some types of snake are harmful to humans. Mostly they are the venomous snakes but constrictors like the Anaconda can crush the air out of someone and kill them. It has not been proven that they can eat you though, we are too big. Some Venomous snakes are not too bad like the Adder, you can simply have the anti-venom and you will be fine but some like the Spitting Cobra can kill you in hours. 9/10 of the worlds most venomous snakes live in Australia so that is the most likely place for you to be at risk.