​5 giant ancient snakes that once ruled the Earth​

Snakes have always been surrounded by mystery and interest from people, both for the legendary stories surrounding them and also their frightening appearance. Their silent movements, venomous bites, and unbelievable strength make them one of nature’s most unmatchable predators.

But while today’s snakes can be deadly, the past was home to serpents that were on an entirely different level, where some were bigger, some were smarter, and some were terrifying. Although these ancient reptiles are now extinct, they once roamed prehistoric forests, oceans, and swamps as apex predators and preyed on creatures far larger than modern snakes could handle.

Here are five of the most deadly snakes that once existed but no longer walk the Earth.

Laophis crotaloides is one of the most mysterious extinct snakes ever discovered. Estimated to have lived in southeastern Europe between 2 to 5 million years ago, it likely grew larger than any venomous snake alive today. With huge vertebral bones indicating a huge size, this prehistoric serpent might have hunted large mammals, possibly even early humans. Its name refers to rattlesnake traits and suggests it may have had viper-like features. Sadly, much about its life remains unknown due to a limited fossil record.

Titanoboa is the largest snake ever known to have lived. Growing over 42 feet long and weighing more than a ton, it slithered through Colombian rainforests around 60 million years ago. Scientists believe its size was supported by the warm Paleocene climate, helping this cold-blooded beast to survive. Titanoboa preyed on giant fish and likely ruled its swampy ecosystem. Fossils from the Cerrejón coal mines give us a rare window into its world, which was likely a post-dinosaur Earth where snakes had the top spot.

Sanajeh indicus may not have been the biggest snake of its time, but it was definitely among the cleverest. Living about 70 million years ago in what is now India, this 10-foot predator specialised in raiding dinosaur nests. Fossils show one coiled around a hatchling, caught mid-meal , this fossil also accounts for a rare fossil of a snake caught mid meal. Despite its smaller size, Sanajeh’s agility, quickness, and strategy made it deadly. Its name means "old gape," referring to its ability to swallow prey larger than expected.

Wonambi was a massive, non-venomous snake that roamed ancient Australia roughly 50,000 years ago. Growing up to 20 feet, it lacked venom but used its muscular strength to constrict prey. It lived in wetlands, hiding in dense vegetation before hunting down marsupials that came too close. It was a part of the extinct Madtsoiidae family, and vanished likely due to climate changes and early human activity. Despite its extinction, its fossils give a look into a lost Australian ecosystem once ruled by giant reptiles.

Unlike most extinct snakes, Palaeophis lived in the ocean. Measuring up to 30 feet, this Early Eocene predator swam through ancient seas around 55 million years ago, hunting fish and marine life. Fossils found in Europe show it was well-adapted for aquatic life with a streamlined body and powerful swimming ability. Its name means “ancient snake,” and it represents one of nature’s early experiments with marine reptiles. Though extinct, it found a way for the evolution of modern sea snakes.