Fossil Teeth For The First Time That Dinosaurs Like Birds Migrating
SAN FRANCISCO, Oct. 30 news, a long time, paleontologists have been unable to determine whether the dinosaurs, like birds or other animals, like the wildebeest migration.
ugg sheepskin cuff bootLong may face different because (a distant relative of Tyrannosaurus rex) threat, giant herbivorous dinosaurs in the grasslands of migration is not a very far-fetched idea. Now, the University of Colorado, United States researchers first to show that dinosaurs also deterioration in the living environment movement. Summer, Camarasaurus in plenty of water through the flood plains, the dry season, they are going to the mountains, in search of food and water. Researchers in the teeth of fossil evidence of dinosaurs found in the migration of oxygen is not a one-time, but with regular and seasonal, and now birds and other animals similar. Fossil evidence of radioactive isotopes in the teeth,
uggs classic talldinosaur intake of water from different sources. The researchers pointed out that with today's animals, dinosaurs, the deterioration of the living environment will move to a more lush grassland. After migrating dinosaurs, predators may also be followed. The study was conducted by Colorado State University, Henry - Frick leadership. Currently, they are looking for Allosaurus and other predators follow the movement of herbivores evidence. Natural History Museum in London - Paul Barrett told the "New Scientist" magazine interview, said: "large-scale migration is like a huge mobile supermarket." The researchers used the oxygen in the fossil teeth of the first to show dinosaurs in the flood plain between the migration. The dry season, they migrate to the mountains,
bailey button uggin search of food and water. Found in the fossil teeth of the radioactive signal of oxygen - the ratio of different isotopes - and flood plains in the ratio of carbonate differences. Researchers published in "Nature" magazine reports that the Camarasaurus was temporarily left floodplain. Through the analysis of fossil teeth, researchers found that isotope levels in five months, a gradual change, that has a seasonal migration.Scientists said that the name "Fruitadens Haagarorum" dinosaur, lived about 150 million years ago in the Jurassic period. It weighs less than 900 grams, stand up, only 10 cm high, from start to finish of the body length of only about 71 cm. It is understood that fragments of dinosaur skulls and limbs of 30 years ago in Colorado, was dug out, and has been stored in museums. Until recently, the museum's scientists discovered that it belongs to a new dinosaur species. Scientists point out that its front and both sides of the jaw were fang-like and leaf-shaped teeth,
uggs classic shortI believe it is omnivorous dinosaur. Director of the Institute Qiapei dinosaur museum, said, in addition to plants, it will eat insects and other small animals. Because of its small size, agility, it can be in a large carnivorous dinosaur's legs shuttle.
by: george
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