cretaceous period

Carnivorous dinosaur tooth from the Colville River bluffs. North Slope, Alaska.jpg

Cretaceous Maternity Ward of Perinatal Dinosaurs Discovered in Alaska

Various experts from different institutions have uncovered the tiny bones of Cretaceous dinosaurs in the Arctic region. The findings suggest that dinosaurs had a maternity ward in the northern hemisphere and that the ancient creatures themselves may have not been cold-blooded.
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