A colossal prehistoric snake that lived in India about 47 million years in the past could have been one of many largest snakes ever to exist. Often called Vasuki indicus, the traditional reptile might have reached a unprecedented 15.2 meters (50 toes) in size, placing it in the identical league as Titanoboa, the big extinct snake lengthy considered the biggest ever found.
The exceptional discovery, described in 2024 within the journal Scientific Stories, got here from fossils unearthed in Gujarat, western India. Researchers estimate that Vasuki measured between 10.9 and 15.2 meters (36 and 50 toes) lengthy, though its actual dimension stays unsure. Its monumental physique and strange evolutionary historical past supply a glimpse right into a time when big snakes inhabited the nice and cozy, tropical landscapes of historic India.
Big Snake Fossils Unearthed in India
Paleontologists Debajit Datta and Sunil Bajpai of the Indian Institute of Know-how Roorkee recognized the species from fossils recovered on the Panandhro Lignite Mine in Kutch, Gujarat. The stays date to the Center Eocene, a interval roughly 47 million years in the past when Earth’s local weather was significantly hotter than it’s right this moment.
The researchers examined 27 fossilized vertebrae, the person bones that make up a snake’s spine. Many have been remarkably nicely preserved, and a few remained related of their unique association. The bones seem to have belonged to a totally grown animal.
The species was named Vasuki indicus in honor of Vasuki, the legendary serpent related to the Hindu deity Shiva, who’s historically depicted with the snake wrapped round his neck. The second a part of the title refers to India, the place the fossils have been found.
How Huge Was This Prehistoric Snake?
Though the scientists didn’t get well a whole skeleton, the preserved spine supplies vital clues in regards to the snake’s monumental proportions.
Particular person vertebrae measured between 37.5 and 62.7 millimeters (1.48 and a couple of.47 inches) lengthy and between 62.4 and 111.4 millimeters (2.46 and 4.39 inches) extensive. Their unusually broad form means that Vasuki possessed a thick, cylindrical physique able to supporting great weight.
To estimate its whole size, the researchers in contrast the fossilized bones with vertebrae from residing snakes whose physique lengths are identified. Two totally different strategies produced estimates starting from 10.9 to 12.2 meters (36 to 40 toes) and 14.5 to fifteen.2 meters (48 to 50 toes).
These measurements place Vasuki among the many largest snakes ever recognized. Its estimated size rivals that of Titanoboa, the large snake that inhabited what’s now Colombia roughly 60 million years in the past and is believed to have reached round 13 meters (43 toes).
Nevertheless, the researchers warning that their calculations contain appreciable uncertainty. Completely different strategies can produce considerably totally different estimates, notably when scientists should reconstruct an extinct animal utilizing an incomplete spine. It stays unclear whether or not Vasuki really exceeded Titanoboa in size.
A Huge Predator That Seemingly Hunted by Ambush
Regardless of its intimidating dimension, Vasuki most likely was not a very quick or agile hunter.
The researchers counsel that its monumental physique and distinctive vertebral construction would have favored comparatively sluggish motion. Moderately than actively chasing prey, the snake could have relied on ambush ways, remaining hid till one other animal got here inside hanging distance.
Its looking conduct might have resembled that of contemporary anacondas and huge pythons, which might overpower prey by means of constriction. These snakes use their muscular our bodies to tighten round captured animals, interfering with circulation till the prey dies.
Scientists suspect Vasuki could have hunted in an analogous means, though its exact eating regimen and looking conduct can’t be decided from the surviving fossils.
Its anatomy additionally means that the snake could have spent a lot of its time on land or in shallow, swampy environments, slightly than residing completely in water. The traditional panorama surrounding the fossil web site contained wetlands and marshes that might have offered appropriate habitat for an unlimited ambush predator.
Historical India’s Heat Local weather Might Have Helped Snakes Develop Huge
The invention additionally raises questions on why some prehistoric snakes reached sizes far past these of most species alive right this moment.
In the course of the Center Eocene, the area the place Vasuki lived skilled tropical circumstances, with common temperatures estimated at roughly 28 levels Celsius (82 levels Fahrenheit).
Snakes are ectothermic animals, that means they rely closely on exterior sources of warmth to manage their physique temperature. Heat environments can help the exercise, digestion, and development of enormous reptiles, probably serving to clarify why exceptionally giant snakes appeared throughout a few of Earth’s hotter durations.
Nevertheless, temperature alone doesn’t decide how giant a snake can develop into. Meals availability, appropriate habitat, evolutionary historical past, and different environmental components additionally affect physique dimension.
A Misplaced Lineage of Big Snakes That Unfold Throughout Continents
Past its extraordinary dimension, Vasuki supplies proof of an historic department of snake evolution.
The species belonged to Madtsoiidae, an extinct household of snakes that survived for roughly 100 million years, from the Late Cretaceous to the Late Pleistocene. Members of this group occupied areas together with India, Africa, Europe, South America, and Australia.
In contrast to trendy anacondas and pythons, Vasuki represented a separate evolutionary lineage inside this long-extinct household.
The researchers discovered that its closest kinfolk included Madtsoia pisdurensis, a fossil snake from historic India, and Gigantophis garstini, one other giant prehistoric snake identified from North Africa.
These relationships counsel {that a} lineage of big madtsoiid snakes originated on the Indian subcontinent earlier than spreading into different components of the world.
As India moved northward and collided with Asia round 50 million years in the past, altering geographic connections could have allowed these snakes to disperse by means of southern Eurasia, together with southern Europe, and finally into Africa throughout the Eocene, roughly 56 to 34 million years in the past.
Later Fossil Discoveries Reveal an Historical World Crammed With Snakes
Analysis revealed in 2025 has added vital context to the invention of Vasuki.
In a research revealed within the Journal of Paleontology, Datta and Bajpai described further fossil snakes from Eocene deposits in western India. Their findings revealed a surprisingly various group of historic reptiles, together with aquatic snakes, one other giant member of the madtsoiid household, and different extinct snake teams.
Among the many discoveries was Pterosphenus rannensis, an historic aquatic snake species that provides to scientists’ understanding of how these reptiles developed and unfold.
The researchers additionally recognized one other madtsoiid snake that seems to have shared a marshy setting with Vasuki. This means that the large predator was a part of a broader group of snakes occupying totally different ecological roles, slightly than an remoted evolutionary oddity.
Proof from the fossil deposits signifies that a few of these snakes inhabited tidal environments, whereas others occupied swamps and marshes. Collectively, the discoveries paint a extra detailed image of the complicated ecosystems that existed in India tens of thousands and thousands of years in the past.
What Trendy Anacondas Reveal About Big Snakes
Extra proof about snake gigantism emerged from a separate 2025 research revealed within the Journal of Vertebrate Paleontology.
Researchers analyzing fossilized anaconda vertebrae from Venezuela discovered that these monumental snakes had already developed giant our bodies by roughly 12.4 million years in the past. Historical anacondas reached estimated lengths of round 5.2 meters (17 toes), akin to the dimensions of many residing anacondas.
The findings counsel that anacondas maintained their spectacular dimension for thousands and thousands of years, at the same time as climates and ecosystems modified. In addition they present that prehistoric snakes didn’t essentially develop bigger just because the planet was hotter.
Though anacondas are evolutionarily distinct from Vasuki, the analysis affords a helpful comparability for understanding how totally different snake lineages turned giants and tailored to their environments.
For Vasuki indicus, the complete story stays incomplete. Its exact dimension, look, and conduct are nonetheless unsure, however the fossil proof establishes it as a unprecedented instance of prehistoric gigantism.
Along with later discoveries from the identical area, the traditional snake helps scientists reconstruct a largely forgotten world by which large serpents occupied the tropical landscapes of India.
Initially revealed by www.sciencedaily.com.