That would depend on the type of snake. From the garter snake to the anaconda would be a substantial difference.
They can live up to 7 years in captivity.
coral snakes get about 2-4 feet long
It is not uncommon for adult cottonmouths to exceed 80 cm or 31 inches in length.
962383648 miles long. they move like elephant on all four of their legs. they can change their scales colors.