July17,2024
Descendants of ancient reptiles that lived during the Mesozoic Era, crocodiles have changed little in millions of years
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Modern sharks, like the Great White, trace their lineage back to prehistoric times, with ancestors dating back over 400 million years.
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These marine arthropods have existed for over 450 million years, maintaining a body structure remarkably similar to their ancient predecessors.
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Once thought extinct, the coelacanth is a deep-sea fish whose lineage dates back to the Devonian period, about 400 million years ago.
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Native to New Zealand, the tuatara is a reptile that has existed for about 200 million years, representing an ancient lineage of lizard-like reptiles.
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These large fish have existed for over 200 million years, with little evolutionary change, making them direct descendants of prehistoric fish.
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This marine mollusk, with its distinctively coiled shell, has ancestors dating back about 500 million years, making it a living fossil.
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Like crocodiles, alligators are descendants of ancient reptiles, sharing a common ancestry with dinosaurs and other Mesozoic reptiles.
Credit: Pixabay