Discover The Snake As Big As A School Bus, The Largest Ever

Written by Austin S.
Published: May 24, 2022
© Daniel Eskridge/
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You must have heard of some pretty big snakes in the world. If you’ve watched the anaconda movie series, you have an idea of how huge snakes can become. You might be wondering if there was ever a snake more giant than the anaconda. The answer to that is yes. 

Known as the largest snake in history, the Titanoboa is a force of nature. There is a belief that this great hunter wreaked great havoc in its time. Titanoboa is an extinct snake species. It is also believed to be the biggest snake in the history of humanity. Discover some facts about the Titanoboa in this article.  

Titanoboa Scientific Name

The scientific name of the Titanoboa is Titanoboa cerrejonensis. “Titanoboa” combines the Greek word “titan” and Boa, a genus name for the family Boidae. The species name originated from Cerrejon, referring to the coal mine in northern Columbia. 

Titanoboa Description and Size

Based on the fossils found, we can compare the appearance with that of the snakes in the Boidae family. Scientists believe that in the hot, humid jungle, the Titanoboa had brown coloring on its body. The color helped it blend in the muddy waters of its habitat and hunt prey with ease. It is also believed that the snake had scales on its body. 

According to recent fossil discoveries, the estimated length of the Titanoboa is between 40 to 45 feet, averaging the length of a school bus. This prehistoric snake weighs over 1.25 tonnes, four times the weight of a green anaconda. Studies predict that the female Titanoboa was more prominent than its male counterpart. Scientists believe that at its thickest, the Titanoboa can be about 3 feet wide, longer than the arm of a human.  

green anaconda
Scholars believe a Titanboa would have been similar in appearance to a Green Anaconda, but much larger.

©Patrick K. Campbell/

Titanoboa Timeline and Habitat

Examined Titanoboa fossils showed that they lived in the Paleocene era. This means that they emerged after the extinction of the dinosaurs at the end of the Mesozoic era. Fossil remains suggest that they lived in the tropical jungles of South America. Since the snake is almost like the anaconda, it could share the anaconda’s habitual lifestyle. 

Due to the location of the fossil, there is a belief that Titanoboas loved to live in warm climates. The animal most likely spent the majority of its time in the water. The weight of the Titanoboa would have made hunting on land very difficult.  

Amazon Rain Forest
The tropical jungles of South America would have made likely habitats for the Titanboa.


Titanoboa Diet

If you look at the other animals found in the paleocene era, Titanoboa likely fed on prehistoric crocodiles. It is also possible that they fed on turtles, although they would have found it challenging to eat the giant freshwater turtles. This mode of feeding suggests that the Titanoboa was carnivorous. 

Recent findings have shown that the diet of this snake might have consisted of only fish. A study of recent fossil skulls shows adaptations to a piscivorous diet. A diet consisting of only fish is a unique characteristic that sets the Titanoboa apart from the members of the Boidae family.  

Though it’s been thought the Titanboa’s main food source was crocodiles and turtles, recent studies suggest they may have had a piscivorous diet.


Titanoboa Behaviour

Due to its size, it would have been difficult for the Titanoboa to climb trees. It must have slithered around the tree roots instead of climbing the trees. The sheer size of the Titanoboa means it would have been difficult for it to move on land. Still, it would have been able to lurk within undergrowths to strike its prey at lightning speed. 

Titanoboa likely spent most of its time in the aquatic terrain. Hunting in the water would have made it a very dangerous predator. Bodyweight doesn’t mean anything when an animal is in the water. The buoyancy of the water can counter the effects of gravity on the body. 

To this end, the Titanoboa would have been a speedy swimmer in the water. Hunting in the water also allows the Titanoboa to hide its body. The surface sheen of the water can hide the sheer size of the Titanoboa while hunting prey near the water’s surface. 

Like many modern snakes, it’s hypothesized the Titanboa may have been a strong swimmer.

©Dotted Yeti/

Titanoboa Discovery and Fossils Found

The Titanoboa is a new scientific discovery. In 2002, a student visited the Cerrejon coal mine in Columbia and uncovered a fossilized leaf. Further study of the leaf suggested that the leaf belonged to the paleocene era. It was then believed that the mine might have been a rainforest once. 

In 2009, Jason Head and his team of North American scientists did further digging in the mine. The digging uncovered incredible specimens, one of which was the fossilized vertebrae of a serpent. The vertebrae were too big for any jungle reptile currently on record. Jason Head and his team discovered the fossil of the Titanoboa in the La Guajira coal mines of Colombia. 

Since discovering the Titanoboa fossil, about 28 fossil remains of other serpents and three skull fragments have been found. These findings have enabled the scientists to assemble a replica of the giant reptile.  

La Guajira coal mines
La Guajira coal mines: It’s here that fossilized remains of the Titanboa were discovered.

©oscar garces/

Threats and Predators of The Titanoboa

The Titanoboa was the largest predator alive in its era. You might be wondering what type of animal could prey on this snake. Scientists believe that any natural enemy of the Titanoboa preyed on its juvenile and eggs. The paleocene era was home to prehistoric fish, turtles, and crocodiles. Any of these animals could have hunted the young of the Titanoboa. 

When Did The Titanoboa Go Extinct and Why?

The Titanoboa went extinct about 60 million years ago. Scientists predict climate change to be one of the causes of the Titanoboa extinction. The decline in temperature caused the emergence of smaller reptiles. With the rapid decrease in temperature, the metabolic process of the Titanoboa became difficult. 

Change in habitat was also predicted to have caused the extinction of the Titanoboa. A temperature rise caused the disappearance of rainforests and the emergence of grasslands. Since the Titanoboa lost its habitat, it disappeared, and smaller reptiles took their place in the ecosystem. 

North Dakota Grasslands
The decline of the tropical jungles and rise of grasslands due to climate change may have spelled the end for the Titanboa.


How Did The Titanoboa Kill Its Prey?

Snakes will eat anything they can catch. Titanoboa belongs to a family of constrictors. Constrictors do not have venom to paralyze their prey. They make use of their muscle mass to kill their prey. Constrictors have rows of teeth to hold the prey in place and retractable jaws to swallow the prey whole. 

The teeth of the constrictor would have to be curved like hooks so the prey can’t escape from the snake’s jaw. From the fossilized skull found, it is speculated the Titanoboa had rows of curved teeth in the mouth. It would have used the curved teeth to latch on to its prey. In turn, the head of the Titanoboa would have been able to get a secure hold on the prey. 

The body of the Titanoboa is made of muscle. A medium-sized Titanoboa would have been able to inflict pressure on the lungs of its prey with little effort. 

Why Did The Titanoboa Grow So Big?

Reptiles are cold-blooded animals. They depend on external heat sources to fuel their body. Reptiles function at peak conditions when the weather is hot, and they are sluggish when it is cold. They will grow by the temperature of the climate available to them.  

Body functions like digestion would have been more efficient if the temperature at that time were warmer. The Titanoboa would have been able to dedicate all the extra energy to other areas like growing a larger body. 

Titanoboa Distribution

Paleontologists discovered different types of fossils in the Cerrejon region in Columbia. You can only make estimations about the Titanoboa distribution. They could have been more widespread than the researchers discovered. Skeletons need perfect conditions to fossilize. Only time will tell if more information on the distribution of the Titanoboa will be discovered.

Similar Animals To The Titanoboa

Similar animals to the Titanoboa include


Gigantophis(Gigantophis gartstini) was an extinct snake species measuring about 11 meters.  It was the biggest snake ever recorded before the discovery of the Titanoboa.

Green Anaconda

Green Anacondas are giant snakes found in the swamps of South America. They strangle their prey with their muscular bodies before swallowing it whole. 

Reticulated Python

Reticulated pythons are one of the largest snakes in the world. They weigh about 320 pounds and measure up to 20 feet. You can find the reticulated python in southern and southeast Asia. 

Boa Constrictor

Boa constrictors are giant, non-venomous snakes native to tropical South America. Their diet consists of a variety of mammals, reptiles, and amphibians. 

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The Featured Image

artist rendering of a titanboa
© Daniel Eskridge/

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About the Author

Growing up in rural New England on a small scale farm gave me a lifelong passion for animals. I love learning about new wild animal species, habitats, animal evolutions, dogs, cats, and more. I've always been surrounded by pets and believe the best dog and best cat products are important to keeping our animals happy and healthy. It's my mission to help you learn more about wild animals, and how to care for your pets better with carefully reviewed products.

FAQs (Frequently Asked Questions) 

When Was The Titanoboa Alive?

The Titanoboa was alive in the Paleocene era, about 60 million years ago.

How Big Was The Titanoboa

The Titanoboa was the largest animal alive in the Paleocene era. It measured up to 45 meters, the size of a school bus. It also weighed more than 2500 pounds.

Can the Titanoboa Return?

As temperature rises on Earth, there is a probability something like the Titanoboa could return. There have been reports of modern snakes growing to 30 feet in length. However, the possibility of the Titanoboa returning will not happen anytime soon because it takes a long time for a new species to develop.

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