Question

What is the largest snake ever to have lived?

Answer 1

Apparently, a snake named titanoboa lived a long time ago.

Explanation:

This is from an article in the Bangor Daily News :

"The National Museum of Natural History is featuring a life-size replica of Titanoboa along with a cast of its large vertebra through January 2013. When it was alive, the snake averaged 48 feet long .

Fossils from the world’s largest snake were first discovered in 2004 in a coal mine in Colombia that once was a rainforest. Eventually bones from at least 60 of the monster snakes were uncovered."

and also this:

"Scientists figure the snake weighed about 2,500 pounds . It was found near fossilized plants, giant turtles the size of a kitchen table and other creatures dating to more than 60 million years ago in the Paleocene era after the dinosaurs.

Titanoboa was related to modern boa constrictors and anacondas. Scientists say it was the world’s largest predator and large enough to eat a cow or a human easily. It likely fed on large turtles or crocodiles while spending most of its time in water."

Here's a photo:

http://bangordailynews.com/2012/03/29/news/nation/smithsonian-showcases-replica-of-monster-snake/

In the present, the reticulated python is the longest snake on record,

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTqM6ovjOmp499ta6TIG83tkkEJVvc9M7oVJ3wpaxkihvTiAEL72g

and the green anaconda is said to be the fattest one.