The Senses of an Ancient World. The most striking feature of this ancient world was its climate.
Warm Poles: Life in the Cretaceous Earth
Underwater Ecosystems and Flowering Plants The oceans were equally vibrant and terrifying. In the north, the Atlantic Ocean was a narrow seaway, but it was widening rapidly.
Terrestrial ecosystems were dominated by dinosaurs, ranging from the formidable predatory theropods to the colossal, long-necked sauropods. Continental Drift and Its Consequences The movement of these continents reshaped ocean currents and global climate patterns, creating unique environments.
Warm Poles: Life in the Cretaceous Earth
However, these rulers shared the land with a stunning array of other creatures: armored ankylosaurs, horned ceratopsians, and the first birds, which were just beginning to take flight, flapping alongside their pterosaur cousins in the skies. As continents drifted toward their present positions, they carried with them distinct ecosystems, leading to high levels of endemism—meaning species evolved in isolation, creating unique life forms found nowhere else on the planet.
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