Chill life: new study shows dinosaurs thrived in the ancient Arctic

The species uncovered include duck-billed dinosaurs called hadrosaurs, horned dinosaurs such as ceratopsians, and carnivores like tyrannosaurus

Dinosaur species large and small made the Arctic their year-round home and probably developed wintering strategies like hibernation or growing insulating feathers, . The paper, published Thursday in the journal Current Biology, is the result of more than a decade's worth of painstaking fossil excavations, and puts to rest the notion that the ancient reptiles lived only in hotter climes. "A couple of these new sites we found in the last few years turned up something unexpected, and that is they're producing baby bones and teeth," lead author Patrick Druckenmiller of the University of Alaska Museum of the North told AFP. "That's amazing because it demonstrates that these dinosaurs weren't just living in the Arctic, they were actually able to reproduce in the Arctic."