Dinosaurs Behaviour

Dinosaur Quirks

Did any dinosaurs live in the colder, polar regions?

Yes. Paleontologists believe that while most flourished in tropical or temperate climates, some dinosaurs actually lived in the cold weather regions of the ancient world. Fossils of these polar dinosaurs have been uncovered on the North Slope of Alaska. Others have been found at Dinosaur Cove, at the southeastern tip of Australia, and paleontologists date them to between 110 and 105 million years ago. Although this part of Australia is presently at approximately 39 degrees south latitude, at the time of the polar dinosaurs it was much farther south, lying within the Antarctic Circle. For three months during the winter, the night would have lasted 24 hours, and temperatures were well below zero degrees Fahrenheit (–17 degrees Celsius). The dinosaur fossils uncovered in this area show that the animals were well adapted to these harsh conditions, and that they apparently had keen night vision and may have been warm-blooded. They were generally small animals, ranging in size from about that of chickens to human-sized, with the largest carnivore being about nine feet (three meters) high.


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