Investigation of the Polar Dinosaur

Survey of extreme dinosaurs Today, we know that dinosaurs and other large reptiles once lived on every continent of the Earth from fossil evidence. If you are a paleontologist responsible for finding fossils, you will find it first. When searching for evidence, frozen Antarctica may be the last continent you want to find. But over the past two decades, a large number of prehistoric fossils have been discovered in areas close to Antarctica.

Take the pole dinosaur statement. When dinosaurs live, even the polar regions where dinosaur fossils are seen are much warmer than today - for some of the years they are warm enough for animals not to inhale life. During extremely cold seasons, so-called extreme dinosaurs may move to warmer areas or hibernate like many modern reptiles. Therefore, even if a dinosaur fossil exists in the polar region, it is not proved that the dinosaur is endothermic. So, dinosaurs are not placed aside like crocodiles, but put your feet under your body? This does not necessarily mean that it is a high energy heat absorber made to run a dinosaur. There is another explanation under the foot: this body structure supports more weight. Therefore, under a foot, dinosaurs may grow to a very large size.

According to a 2005 survey by Patrick M. O'Connor, the large carnivorous dinosaurs have complex airbag systems similar to modern birds. The animal legs The lungs of dinosaurs (carnivores with legs with two legs and feet like birds) can pump air into hollow capsules of bones like birds. Mr. O'Connor said, "What is formally considered as being specific to birds exists in some way in the bird's ancestry." In 2008, scientists described Aerosteon riocoloradensis whose skeleton provides the strongest evidence to date that dinosaurs have bird-like respiratory systems. CT scan of Aerosteon's fossil skeleton reveals evidence of airbags in the body cavity of animals