The biggest snake overall is the anaconda. The anaconda is a kind of boa constrictor that lives in South America.
The largest anaconda ever measured was 28 feet long and 44 inches around its girth.
However, there is another snake that is even longer than an anaconda. That is the reticulated python, which is another
kind of boa constrictor that lives in Asia. The longest reticulated python ever measured was 28.5 feet long, which is half a foot
longer than the longest anaconda was, making it the longest snake of all.
But the python's girth was much thinner than the anaconda's, 37.5 inches.
So overall, counting both length and width, the anaconda is the largest snake.