Articles for category: Prehistoric SeaWorld

The Inland Seas That Split North America in Two

The Inland Seas That Split North America in Two

The heart of North America once harbored vast prehistoric seas that divided the continent into separate landmasses. These ancient inland waterways, which existed during various geological periods, fundamentally shaped the continent we know today. From the Western Interior Seaway of the Cretaceous period to earlier Paleozoic seas, these massive bodies of water created unique ecosystems, ...

5 Prehistoric Marine Reptiles Far More Terrifying Than Any Dinosaur

5 Prehistoric Marine Reptiles Far More Terrifying Than Any Dinosaur

When most people think of prehistoric terror, their minds immediately jump to towering dinosaurs stomping across dry land. T. rex with its bone-crushing jaws, Spinosaurus with its sail-like back. Those are the creatures that dominate films, toy aisles, and school projects. Honestly, it makes sense. Dinosaurs are photogenic monsters. Here’s the thing though: they were ...

Kronosaurus hunting on the plesiosaur Woolungasaurus

The Sea Monsters of the Mesozoic: Ichthyosaurs, Pliosaurs & Mosasaurs

The depths of Earth’s primordial oceans once teemed with marine predators so formidable that they would eclipse many of today’s apex ocean hunters. During the Mesozoic Era (252-66 million years ago), while dinosaurs dominated the land, the seas belonged to a spectacular array of reptilian creatures that had returned to aquatic lifestyles. Ichthyosaurs with their ...

Close-up of a large, brown Chinese giant salamander in a clear water tank. Its textured skin and small eyes are visible, conveying a serene presence.

Giant Amphibians and Their Vanishing World

Deep in the world’s remaining old-growth forests, hidden in crystal-clear mountain streams, and lurking beneath the murky waters of ancient lakes, Earth’s giant amphibians have thrived for millions of years. These remarkable creatures—some reaching lengths of over five feet—represent living connections to prehistoric times when amphibians ruled much of the planet. Today, however, these magnificent ...