Gigantic prehistoric snake discovered in India may have been one of the largest ever

Vasuki indicus was a gigantic prehistoric snake that lived about 47 million years ago. It matters because estimates place it among the largest snakes ever found, rivaling Titanoboa. The name honors Vasuki, a mythical serpent associated with the Hindu deity Shiva.

Researchers identified it from 27 fossilized vertebrae recovered at the Panandhro Lignite Mine in Kutch, Gujarat, western India. Those unusually broad bones suggest a thick body. Comparisons with living snakes produced estimates between 10.9 and 15.2 meters. Its size probably made it a slow ambush predator, much like a modern anaconda. It may have overpowered prey by constriction, tightening its body and disrupting circulation.

Scientists still cannot determine its exact length because no complete skeleton was found. Two reconstruction methods gave different results, showing why its maximum size remains uncertain. The larger estimate reaches 50 feet, comparable to Titanoboa’s roughly 13 meters. Vasuki lived in warm Middle Eocene landscapes containing wetlands and marshes.

Vasuki indicus may have reached 10.9–15.2 meters (36–50 feet), making it one of history’s largest snakes. Its size roughly matched Titanoboa, estimated at about 13 meters (43 feet), though Vasuki’s exact length remains uncertain. The fossils date to 47 million years ago, during a warmer Middle Eocene.

Researchers reconstructed its length from 27 vertebrae found in Gujarat, because no complete skeleton survived. Its broad backbone suggests a thick body, likely favoring slow ambush attacks rather than chasing prey, like modern anacondas and large pythons.

Compared with living snakes, Vasuki would have been dramatically longer and heavier, although the article gives no exact modern size comparison. Scientists therefore present a range, not a definitive record, and cannot confirm whether Vasuki exceeded Titanoboa.

Researchers found 27 fossilized vertebrae, or backbone bones, at Gujarat’s Panandhro Lignite Mine. Some were remarkably preserved, and several remained connected in their original arrangement. The fossils belonged to Vasuki indicus, a snake that lived about 47 million years ago.

Scientists measured each vertebra, including lengths from 37.5 to 62.7 millimeters and widths from 62.4 to 111.4 millimeters. They compared these measurements with vertebrae from living snakes whose total lengths are known. That comparison helped estimate the missing sections of Vasuki’s backbone and body.

Two methods estimated Vasuki’s length at 10.9–12.2 meters or 14.5–15.2 meters. The wider range reflects uncertainty because scientists did not find a complete skeleton. Even so, the upper estimate reaches 50 feet, rivaling Titanoboa, though scientists cannot confirm which snake was longer.

Vasuki’s enormous body probably made it slow and less agile than smaller snakes. Its weight would have favored hiding and striking nearby prey, rather than chasing animals over long distances. This matters because body size can shape both a predator’s movement and its feeding strategy.

Researchers compared it with modern anacondas and large pythons, which ambush prey and constrict them. Vasuki may have used a similar method. It could hide in wetlands or marshes, then wrap around prey and stop circulation. This approach would let a massive snake attack without spending energy on a long chase.

Fossils cannot reveal its exact diet or behavior, so scientists present this as a likely pattern, not a certainty. Its estimated length was 10.9–15.2 meters, and its broad vertebrae indicate a heavy, cylindrical build. That size may have helped it overpower large prey, but probably limited speed and agility.

India’s Middle Eocene environment was much warmer than today, with tropical conditions around 47 million years ago. The fossil area in Gujarat included wetlands, marshes, and shallow, swampy habitats. Warm temperatures may have helped a cold-blooded snake maintain activity and grow larger, while wetlands offered water, shelter, and prey throughout the year.

These environments could support Vasuki indicus by providing cover for ambush hunting and space for a massive body. With an estimated length of 10.9–15.2 meters, it may have waited unseen before constricting nearby prey, like modern anacondas.

Vasuki’s broad vertebrae suggest a thick, cylindrical body, but fossils cannot reveal its exact diet. Today, scientists still debate its precise size, because two methods produced estimates from 36 to 50 feet.

An ectothermic snake does not generate enough body heat internally to stay warm. It relies on sunlight and surrounding temperatures, which influence movement, digestion, metabolism, and growth.

During the Middle Eocene, about 47 million years ago, Vasuki indicus lived in warm tropical India. Researchers estimate it reached 10.9–15.2 meters, or 36–50 feet. Warmer conditions could have kept its body active longer and supported faster growth, provided food was plentiful. This helps explain its huge size, but does not prove climate alone caused it.

Today, warmth can benefit reptiles, yet excessive heat can cause overheating, dehydration, and habitat loss. Vasuki’s estimate remains uncertain because scientists studied only 27 vertebrae, not a complete skeleton. Its size shows what warm climates may permit, not what they guarantee.