Polar Dinosaurs
Once there was an idea that dinosaurs were cold-blooded and only thrived in the swamps and wetlands of tropical climes. But the more we look, the more we realize dinosaurs were found in as many different kinds of habitats as birds and mammals are today. Polar dinosaurs, probably warm-blooded and feathery, were thriving roughly 70- -100 million years ago in great polar forests, of which there is no modem equivalent. Fossils of such dinosaurs have been discovered in Siberia, specifically at the Kakanaut River on the Kamchatka Peninsula. The dinosaur remains found here over the years are mostly teeth, but also include some bones, and they reveal the presence of a variety of species. All of these remains are from the very end of the Cretaceous, 66- 68 million years ago, just before the mass extinction event that saw the extinction of the non-bird dinosaurs. “The material was fragmentary but showed that the Arctic dinosaurs were very diverse,” says Pascal Godefroit, an expert on early birds and birdlike dinosaurs who has been involved in the work at the Kakanaut River.
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