Titanoboa: The World’s Largest Snake Ever

Updated on November 30, 2018
Kosmo profile image

Animals have always been of great interest to Kelley, particularly huge beasts such as dinosaurs, giant reptiles and ice age megafauna.

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Artist's depiction of Colonel Fawcett's giant anacondaTitanoboa in the foregroundTitanoboa veterbra (left) compared to that of a modern anacondaElectro-mechanical TitanoboaFanciful drawing of the monstrous snake Fawcett reported seeing
Artist's depiction of Colonel Fawcett's giant anaconda
Artist's depiction of Colonel Fawcett's giant anaconda
Titanoboa in the foreground
Titanoboa in the foreground
Titanoboa veterbra (left) compared to that of a modern anaconda
Titanoboa veterbra (left) compared to that of a modern anaconda
Electro-mechanical Titanoboa
Electro-mechanical Titanoboa
Fanciful drawing of the monstrous snake Fawcett reported seeing
Fanciful drawing of the monstrous snake Fawcett reported seeing

Some snakes get very big!

There are some fairly big snakes on earth these days – the python can grow up to 30 feet (the world’s longest snake), and the anaconda can weigh over 200 lbs, making it the heaviest snake. But Titanoboa, a monstrous serpent as long as a school bus, which existed about 60 million years ago, and then – fortunately for us, apparently went extinct - was much longer and heavier than any existing snake. So big, in fact, it fed on 20-foot crocodiles!

As far as we know, Titanoboa was the world’s biggest snake ever.

Let’s find out more about this gigantic snake and see if there could still be more of them lurking in the world’s watery depths:

Where Were the Remains of Titanoboa Found?

According to the article “Monster Discovery” in the April 2012 issue of Smithsonian magazine, the fossil remains of a gargantuan snake that scientists dubbed Titanoboa (titanic boa), were discovered in an open pit coal mine in the Cerrejón region of Colombia between 2007 and 2010. This pit mine, larger than the area of Washington D.C., has yielded numerous fossils since the early 1990s, because once the vegetation is stripped from the land, coal is uncovered for miners and fossil-bearing shale for curious archaeologists.

Archaeologists discovered many vertebrae of Titanoboa, scientific name, Titanoboa cerrejonensis, as well as one skull, even though the heads of snakes are rarely found. The fossils are about 58 million years old, which means this giant snake lived during the Paleocene epoch. At this time, dinosaurs and many other animals had gone extinct, killed by some cataclysm perhaps, though the ecosystem had rebounded dramatically. (Please note that not all scientists believe an asteroid killed the dinosaurs.)

The Cerrejón area of this world, where Titanoboa was found, had become a different place than our modern one. Here it rained 150 inches per year, compared to 80 inches as it does today. Also, the average temperature was some 3 to 8 degrees Fahrenheit hotter than today and there was 50 percent more CO2 in the atmosphere. Seemingly, global warming had taken hold of this primeval world!

How Did Titanoboa Live?

Generally, a hotter temperature means cold-blooded reptiles such as snakes can grow larger. Reptiles must absorb heat from their environment, and the more heat they absorb means more energy for capturing and eating prey, and therefore they can grow bigger. That’s why creatures such as insects, reptiles, and amphibians can grow larger in the tropics than in temperate areas. In addition to snakes, ancient ancestors of Cerrejón lungfish and turtles grew larger than their modern relatives.

A snake the size of Titanoboa - 40 to 50 feet long, weighing 2,500 lbs and spanning as much as three feet in width - would have ruled this hot, steamy, tropical realm, eating pretty much whatever it fancied, mainly fish, turtles, and even adult crocodiles, which, because of its massive jaws, it could have swallowed whole in one long gulp!

This formidable slithering beast didn’t need venom to subdue its prey; it relied on constriction. Titanoboa could squeeze as hard as 400 pounds per square inch, enough force to kill any prey alive at that time, except for perhaps marine mammals such as whales.

The modern equivalent of Titanoboa is the boa, which can reach 14 feet long and weigh 100 pounds. But a much better match is the South American anaconda, a water snake that thrives in rivers, lakes, and swamps and can grow longer than 20 feet.

Could Titanoboa Still Exist?

When the first European explorers entered South American jungles, claims of giant anacondas began being circulated. Many of these lurking serpents, often considered man-eaters, were reported to be as long as 60 feet. The natives of the area also said they had seen such lengthy anacondas. In the early 1900s, people claimed they had seen anacondas 30 feet and longer, but these assertions have never been substantiated, even though the Wildlife Conservation Society has offered a $50,000 prize for the capture of any snake 30 feet or longer.

Back in 1906, South American explorer, adventurer and surveyor Colonel Percy Howard Fawcett, who led numerous expeditions to Brazil and Bolivia in the early 1900s, wrote in his journal that he had shot and killed an anaconda that was 62 feet long from head to tail. But this report was never verified in any way, though Fawcett’s writings are generally considered honest and accurate.

Incidentally, Colonel Fawcett disappeared with his son and his son’s friend in the Mato Grosso province of Brazil in 1925. Their remains have never been found.

Nevertheless, people continue to report sighting immense anacondas, some of which over 100 feet long; one was even close to 150 feet in length! These reports are hard to take seriously, of course. They may as well be reporting the existence of dinosaurs!


Could Titanoboa still exist on the earth? If a giant snake, 30, 40, 50 feet or longer exists, then it would probably be in the rain forest of South America, much of which is still unexplored, though that great mass of vegetation is diminishing quickly due to deforestation.

Perhaps it is more believable to consider the possibility that an intermediate species of snake, one connecting Titanoboa to the modern South American anaconda, exists in South America or, maybe some similar snake, in another tropical locale, perhaps Equatorial Africa or parts of Indonesia. Maybe somebody will find such a marvelous creature one of these days. Most nature buffs would probably hope so!

Please leave a comment.

Questions & Answers

    © 2012 Kelley Marks


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      • profile image

        bob smonim 

        21 months ago

        love this article read it multiple times. Was awesome. thanks whoever wrote it.

      • profile image

        Emmanuel Seth M. Canonigo 

        23 months ago

        Wow thanks for the facts it help me for my class presentation im a student thanks for this i keep searching this for hours but know its here


      • profile image

        nikki hamilton 

        2 years ago

        Yes , still exist, it happen and ive seen it 4 or 5 years ago, sorta or kinda lost snake, lurking at sea, yellow white coil snake. Yap so scary and huge.

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Yes, Rory Searle, I'm sure Titanoboa could squash a car very easily, killing any hapless human who happened to be inside. Later!

      • profile image

        Rory Searle 

        7 years ago

        I bet that snake could crush a car into a tin can killing the human inside.

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Thanks for the comment, Cosmic Bus. You gotta love a 50-foot snake. Later!

      • Cosmic Bus profile image

        Cosmic Bus 

        7 years ago from Maryland

        Wow, nothing more creepy than a giant snake! Very interesting , voted up.

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Thanks for the comment, leahlefler. Titanoboa is truly awesome, ya know what I mean? Later!

      • leahlefler profile image

        Leah Lefler 

        7 years ago from Western New York

        Snakes on a Plane has nothing on this one: Titanoboa could EAT the plane!

        I had no idea such a creature ever existed. Thanks for the nightmares! :)

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Thanks for the comment, drbj. I like your poem. And I'm sure many movie makers such as James Cameron would love to sign Titanoboa to a contract. Later!

      • drbj profile image

        drbj and sherry 

        7 years ago from south Florida

        To Colombia I am a-goa

        To look for the Titanoboa.

        If one I am lucky to attract,

        I'll sign it to a film contract.

        Enjoyed this interesting hub, Kosmo.

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Thanks for the comment, Blawger. I always enjoy turning people on to new discoveries. Later!

      • Blawger profile image

        Bahin Ameri 

        7 years ago from California

        Fascinating. I was totally unaware of this important discovery. Thanks for teaching me something new. Voted up!

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Thanks for the comment, getwellsoon. Titanoboa is certainly an interesting creature. Maybe we could bioengineer an anaconda to look like one. Ha! Later!

        As for you scottcgruber. Titanoboa vs. Octocroc ain't going directly to DVD; it will be released in selected theaters in Mexico and Japan. Later!

      • getwellsoon profile image


        7 years ago from US

        Actually learned a lot about Titanoboas, never knew about them before.

      • scottcgruber profile image


        7 years ago from USA

        Ooo, good casting choice! Titanoboa Vs. Octocroc is going to rock the direct-to-DVD world!

      • Kosmo profile imageAUTHOR

        Kelley Marks 

        7 years ago from California

        Hey, scottcgruber, thanks for the comment. It sounds like you've got a good screenplay going there. Make sure you start it with a really good teaser involving the hot young female research assistant played by Lindsay Lohan. Who cares about monsters? Later!

      • scottcgruber profile image


        7 years ago from USA

        Oh - and the head of the expedition to find the Last Titanoboa is a recently divorced cryptozoologist with a drinking problem. There's also an attractive young female research assistant who falls for the Guatemalan forest guide, to the chagrin of the head researcher. And another guy of unspecified ethnicity who gets killed five minutes in.

        Don't worry - I'll make sure you get mentioned in the credits...

      • scottcgruber profile image


        7 years ago from USA

        "Could Titanoboa still exist on the earth?"

        Doubtful, unless you count the SyFy original movie it will undoubtedly appear in. Hopefully fighting some sort of crocodile-octopus hybrid with a dark secret.


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