Feathered dinosaurs

that dinosaurs are endotherms and provides three reasons of support. In contrast, the professor explains that scientist have serious problems regarding this issue and mentions that it was not proved, and repudiates each of the author's reasons. Fisrt, the article claims that dinosaurs fossils have been found in polar regions which just endotherms can live. Conversely, the speaker refutes this point by imaprting that the area where dinosaurs been was warmer than today. He asserts that dinosaurs…

on the idea that dinosaurs could have been endotherms, which is supported in the reading passage. For one thing, the author of the reading passage states that dinosaur fossils have been found even in polar regions. This shows that dinosaurs might have been able to regulate their body temperature. However, the lecturer contradicts this point by arguing that polar regions when dinosaurs existed were much warmer than today, and when the regions were ice-cold during winter, dinosaurs might have…

Missouri’s Geology Missouri is home to a wide variety of geological history as well as treasure which can be found throughout the state. From its wonderful variety of caves to the rock columns in the state parks of the south as well as the mines. The soil is as rich in diversity as the plant and animal life, from the north to the south as well as the east to the west. It can be dated back as far as before there was life on this planet and at one time even had an ocean over it. It is truly…

Spinosaurus: Then and Now The Spinosaurus is a dinosaur first discovered in the early 20th century. It was named by Ernst Stromer, the man who first discovered it and its name translates to “Spine reptile”. It is estimated to have lived during the Cretaceous period and more specifically between 112-93.5 million years ago. (10) The Spinosaurus belongs to the Phylum of Chordata, meaning it has a hollow nerve chord ending in a brain, the Class of Archosauria, meaning it is a diapsid amniote, the…

The Cretaceous-Paleogene Boundary, (K-Pg) boundary, and the associated Dinosaur Extinc-tion theories have many precedents and most could be viewed scientifically from certain and known historical accounts. These hypotheses, some more believable than others, can serve a purpose to study current life and potential trends for future evolutionary traits. Evaluating certain aspects of the theory’s within this research, the main focus will be not be on the factual cause of the extinction, but rather…

Imagine finding fossils of an undiscovered sauropod while adventuring with some friends. Well that is what happened to Elmer S. Riggs. He discovered the first fossils of the Brachiosaurus. In 1900, Riggs found a partial skeleton of a Brachiosaurus in the rocks of the Brushy Basin Membrane of the Morrison Formation. The fossils were studied and information on this species was revealed. Brachiosaurs lived in the late Jurassic period, which was about 145 to 156 million years ago. The Jurassic…

85 million years ago a dinosaur named the pteranodon came to life. Named by Othniel C. Marsh in 1876, the pteranodon was an exceptional flying dinosaur. It’s name, meaning “winged and toothless,” was for the most part self explanatory. It was a flying dinosaur with a very wide wingspan and no teeth. Did you know that the pteranodon wing-span is longer than that of any known bird? It had a crest on its head, no teeth at all, and a very short tail. Despite what many people still think, modern…

For 16 years, scientists wondered just what had happened with corals in the Florida Keys. In this time period, over half of the corals had perished. They later discovered that the greatest decline was in elkhorn coral. Finally, research showed that the massive coral disappearances were caused by a disease by the name of white pox. The scientists have solved the elkhorn coral mystery using the scientific method - by making observations, conducting experiments, and drawing conclusions. Initially,…

Over 250 Million years ago an unexpected events happen that made the planet earth to transform radically. This event is known as the Permian Triassic Mass Extinction or also called by many the Great Dying. This mass extinction is known as the worst extinction comparing them to the Ordovician, Devonian and the Cretaceous Extinction. Some individuals are not award that the Permian –Triassic are two forming boundary between the end of the Permian and the beginning of the Triassic period. The…

What are dinosaurs? Dinosaurs are enormously large reptiles (cold blooded animal) that lived during the Mesozoic era which is about 230 million years ago. Contrary to the general believe that all dinosaurs were cold blooded animals thought to be sluggish, there were dinosaurs who were warm blooded animals that shared more similar features with aves (birds) of these days than with reptiles, example of which is the velociraptors which belong to the genera Theropods. Some of these dinosaurs are…