Dinosaurs Are Not Endotherms

This researcher proposes that the dinosaurs did not die of heat, in fact she thinks the opposite, that they froze to death instead. Both articles have the same idea about a meteorite hitting the earth yet there is no concrete evidence as to what caused the meteorite to strike and what it did when it got here.

While the author of the article believes that Brachiosaurus were aquatic animals, the professor disagrees with this statement. The professor points out that in spite of the fact that some species of dinosaur would spend a great deal of time in water, there was no possible that Brachiosaurus were aquatic ones. To strengthen her point, the professor provides sufficient evidence respectively to the points made in the article.

In Stephen Jay Gould’s “Sex, Drugs, Disasters, and the Extinction of Dinosaurs”, Gould investigates three possible theories hypothesizing the reason behind the extinction of dinosaurs. The first theory suggests that dinosaurs became extinct due to a rise in temperature, which caused sperm to die, leading to the sterilization of male dinosaurs. The second hypothesis offer that many dinosaurs consumed bitter plants that contained psychoactive agents which their lives could not detoxify out of their systems. The last speculation about the dinosaur’s extinction is that a large cloud of dust formed in the atmosphere after an asteroid hit Earth’s surface. This dust cloud blocked out the sunlight, causing temperatures to drop and made photosynthesis impossible. Gould uses these three theories to lead to his central claim that science isn’t just about making fascinating claims, but should have a well developed hypothesis.

She interacts with many other scientists, using their facts and her own experiences to create almost forty pages of notes and sources in the back of her book which is exquisite proof of the epistemological aspects of the book for fellow scientists. Her information is greatly supported by her and fellow scientists experiences, for example, “A few days after I read Wake and Vredenburg’s article, I booked a ticket to Panama.”(8) adding on to her Of course, though it is highly obvious to even the youngest of children that dinosaurs are extinct, Kolbert grazes their history in the early chapter of her book to prepare readers for what is to come, blowing the minds of every person to pick up her book. She then masterfully displays the toxic behavior of humans causing and adding to the extinction of several species

According to the reading there are numerous reasons stated that the dinosaurs were migrating through their career. In contrast the professor states the contradiction points of the reasons mentioned in the reading.

The reading and the lecture are both theories of why dinasours were endotherms or cold blooded aninmals. Whereas as the author of the reading states that there is not enough evidence to assume that dinosaurs were endotherms. The lecture casts doubt on the main points made in the reading by providing three reasons.

One fact that was clarified in the book was that Saurapodomorphas didn’t like living in swamping environments but rather dry climate. Some minor details that were interesting were when the characters in the book said that the dinosaurs smell or that they weren’t intelligent. There’s no telling how a dinosaur smelled because no one was already to know. Even though the intelligence of dinosaur weren’t known but many animals learn to adapt and survive. Couldn’t scientist make an estimate of how brain was using the skull of dinosaurs that they discovered?

First, the argument stated in the article readily assumes that dinasours fossils are located in the polar regions and this is the evidence to determine that dinasours were endhoterm. In contrast, the professor provides information that these polar regions were much warmer than today. In addition, she states that when the climate was so cold in these regions, dinasours were migrating or hibernating. That’s why we can not easily assume that dinasours were endhoterms.

The reading states that there are several different theories about how agnostids may have lived and provides three reasons of support. However, the professor states that there are serious weaknesses in each of the theories represented in the reading passage and the author refutes each of the authors' reasons.

Second,the writer says the fact that edmontosaurus lived in herd prove the migration hypothesis.Professor disagrees

Despite agreeing with the description about the dinosaur provided in the reading passage, the speaker claims that the hypothesis to justify the uses of the Dinosaur's crest are not entirely true and he provides new conclusions about those three presented hypothesis.

In this set of material, the reading passage explains that dinosaurs were endotherms because there are three evidences that prove this theory. The lecturer, however, is doubtful about these three evidences that suggest dinosaurs were endotherms.

Because warm blooded animals don’t have to rely on their environment for body temperature, they are able to hunt at any time of the day or in any season, which is a great advantage over cold-blooded animals.  Therefore this “type of intense activity needs a fast metabolism which is much too high for a cold-blooded animal.  Secondly, cold-blooded animals have a hard time living in cold climates and dinosaur fossils have been found in the colder environments” (Eschberger).  However, scientists believe warm blooded animals would have suffered from the heat in warmer climates, where many fossils have been discovered.  Beverly Eschberger discusses how dinosaurs must have been only warm blooded animals due to the factors of, bone structure, and histology, growth rates, predator to prey ratios, speed and agility, rate of evolution, similarities with birds, and insulation.  She also explains the disadvantages of being a warm blooded animal: “a much larger expenditure of energy to maintain elevated metabolism and a commensurate increase in food requirements” (Eschberger).  Just as the conclusion that dinosaurs were truly warm blooded becomes clearer, factors from the cold blooded side switch everything around.  Gigantothermy, rate of food supply, respiratory turbinates and lung structure all cause scientists to believe dinosaurs were in fact cold-blooded.  There have been many attempts to find the real resolution of whether or not dinosaurs were warm or cold

The lecturer talks about a dinosaur called Sinosauropteryx and discusses that the idea that S was a feathered dinosaur is very strong, because the fossil included a pattern of fine lines and she indicates that the points made by the reading are unconvincing.

These techniques led to the discovery of the boundary between the two eras. A single thin layer of clay found within predominantly limestone rocks established this. By comparing the marine life found in, above, and below the clay, the marine life, like the dinosaurs, had been terribly affected by the extinction event. The percentage of life in the upper layers was dramatically lower than that in the lower. This was far more compelling than what was suggested by dinosaur’s fossils.