Dinosaurs used to live in the arctic

You've heard of the spectacle: 65 million years ago, a large meteor hit the earth, causing volcanoes, smoke and dust to fill the space, and then the dinosaurs disappeared.

One theory is that the cold caused by the obscured sun is the cause of killing dinosaurs. However, a group of paleontologists headed by Pascal Godefroit, from the Belgian Royal Institute of Natural Sciences in Brussels, made another theory.Accordingly, some dinosaurs (presumably warm-blooded) have coped very well with near-freezing temperatures .

According to the team's latest discovery, some dinosaur fossils have been buried along the Kakanaut River today in northeastern Russia just a few million years before the disaster.According to calculations after subtracting the accreted continent, it is thought that this dinosaur has lived above 70 degrees north latitude, away from the Arctic Circle (66 degrees 30 minutes North).

A dinosaur tooth was discovered along the present Kakanaut River in northeastern Russia.The tooth shows the dinosaurs who once lived on the Arctic Circle.(Photo: Pascal Godefroit)

And they are not just lost individuals. Fossils including the dinosaur eggshell - were first discovered at such a high latitude - and also the evidence of a stable, reproductive population.

It is true that the Arctic is much warmer than it is now, but certainly their lives are not easy. The size and shape of fossil leaves found with dinosaur bones allows the Godefroit team to estimate the average temperature for the year to be 50 degrees F, and winter temperatures down to freezing.

There are many factors that kill dinosaurs. The dust in the atmosphere must have taken away the photosynthesis process of the plant, weakening the basis of the food chain and causing hunger, eventually leading to the extinction of the dinosaurs.

The study is described in detail in Naturwissenschaften.