Throughout Earth's history, several colossal creatures have roamed the planet, only to vanish due to various extinction events. Here are some of the most remarkable among these giants
An enormous shark that dominated the oceans approximately 23 to 3.6 million years ago, reaching lengths of 50 to 60 feet and weighing up to 113 tons.
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Inhabiting South America until about 10,000 years ago, this herbivorous mammal could reach lengths of 20 feet and weigh up to 4 tons. Despite its size, it was a gentle creature that fed on leaves and shrubs.
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Recognized as one of the largest terrestrial animals, this massive dinosaur measured about 85 feet in length and weighed approximately 65 tons. It roamed parts of South America during the Late Cretaceous period.
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A prehistoric relative of modern alligators and crocodiles, Deinosuchus lived during the late Cretaceous period. It could grow up to 39 feet long and had a powerful bite capable of preying on dinosaurs.
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After the dinosaurs' extinction, Titanoboa emerged as the largest snake ever discovered. Measuring up to 42 feet in length and weighing around 2,500 pounds, it inhabited the warm, humid climates of prehistoric South America.
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An early whale species that lived approximately 35 to 33.9 million years ago, Basilosaurus could reach lengths of about 50 to 60 feet. Its elongated body and sharp teeth suggest it was a formidable marine predator.
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Also known as the "Siberian unicorn," this massive rhinoceros species lived until about 40,000 years ago. It could grow up to 15 feet in length and weigh an estimated 4 tons.
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