Before you read, decide which of three explanations for the extinction of the dinosaurs you like best. Norton and Company Originally published in Discover Magazine, Time Inc. Dust, steam, ashes and poisonous gases were also shot into the atmosphere, which made it impossible to breath and thus the extinction of the dinosaurs. As we learned, a refutation is stating another persons opposing point of view and then giving a rebuttal. The doctor has a point; the reason that dinosaurs are most popular amongst the extinct species is mostly because of Hollywood. Paleontologists have proposed scenarios that could have caused these extinctions. The best scientific hypotheses are also generous and expansive; they suggest extensions and implications that enlighten related, and even far distance, subjects.
We can never be completely sure that a hypothesis is right, though we may be able to show with confidence that it is wrong. According to the principle, these three speculations are analyzed. It is stated that science allows human beings to know and gain knowledge. There are many types of theories out there like the Asteroid Impact theory, the possibility of the climate changing, and the thought out volcano eruption idea but which of these is accurate. Thirty times the average amount in parts per million.
There is evidence that many of the large dinosaurs, must have had very small brains in comparison to their total body size, possibly as small as a kitten's brain. Although all arguments are credible, and supportive with educated information and data, the most conclusive theory of all is The Alvarez Asteroid Impact theory. An evaluation of theories and hypotheses is essential in. The doctor has a point; the reason that dinosaurs are most popular amongst the extinct species is mostly because of Hollywood. According to Gould, what constitutes a scientific hypothesis? The author believes this is not merely a coincidence, rather, it is a proof of the cause-effect relationship.
The dinosaurs, therefore, cannot stand the lack of sunlight and plant life. This paper will show that what happened to the dinosaurs, could happen to us. The Great Dinosaur Extinction Controversy Helix Books by Charles Officer, Jake Page Contributor. Sex, Drugs, Disasters, and the Extinction of Dinosaurs, written by Stephen Jay Gould in 1984, states that the real science focuses more on the development process of the final conclusion rather than solely a fascinating claim. The most popular theory is that an asteroid ended the reign of the dinosaurs. Gould states that this theory is another example of bad science. Back to the purpose… Purpose The purpose of the title is to grab the attention of a normal person who normally wouldn't research the extinction of dinosaurs The purpose of the essay is to get the reader to think deeper into the meaning of things and for them to expand their horizons to think beyond what they thought was possible Sources: Authors Background Born: September 10, 1941 New York, New York Died: May 20, 2002 New York, New York Organization of the Essay Gould starts off the essay by defining science and explaining that the conclusion is not the only part of a scientific discovery Then he goes on to try and explain that if new information prevails, so do new hypothesis and we gain confidence as further evidences gets unveiled.
It then presented the claim. Gould mentions that this theory shows expansive science while the others are untestable. The normal amount of Iridium an area is to have is 0. Disasters: A large comet or asteroid struck the earth some 65 million years ago, lofting a cloud of dust into the sky and blocking sunlight, thereby suppressing photosynthesis and so drastically lowering world temperatures that dinosaurs and hosts of other creatures became extinct. Though nowhere near as severe as the end-Permian mass extinction, the end-Cretaceous extinction is the most well known mass extinction event.
He feels that there should be some room for extra research rather than just stating the hypothesis and leaving it there. Finally, good hypotheses create logical relations to other subjects and contribute to their expansion. The End of the Dinosaurs : Chicxulub Crater and Mass Extinctions by Charles Frankel Author Hardcover - October 1999 4. Testable evidence, study, development, contribution — all this makes good science. In this article the author, Stephen Gould, then expands on each of these proposals.
Dinosaurs and humans coexisted — the death of last dinosaur and the appearance of the first human was separated by about 62 million years. New Scientist, 1 The theory of the Alvarez Asteroid states that the strength of this comet is at 10,000 times the explosive power of the global nuclear arsenal. To illustrate the difference between real science and pseudoscience Gould presents the question of how the extinction of dinosaurs occurred. The conclusions are the consequence, not the essence. A famous twentieth-century example is the extirpation of wolves from the Yellowstone region of Wyoming. He then ended the paper by summarizing his findings and discussing how it supported his claim. One such theory is that a shift in the solar system could have caused the mass destruction.
The comet struck the Earth, and habitats, from terrestrial to marine, died with geological suddenness. Iridium, common in meteorites, is a testable evidence of the disaster hypothesis. And we are left to read the countless articles, all having their own opinions as to the mass extinction. Gould argues that this theory is untestable, and the experiments with the influence of extreme temperatures on modern alligators do not necessarily explain the extinction of dinosaurs. If large animals absorb heat so slowly through their relatively small surfaces , they will also be able to shed any excess heat gained when temperatures rise above a favorable level.
Forest fires, tsunamis and severe storms occurred everywhere, and all the sunlight was blocked. Among the many causes given for the extinction of dinosaurs, a few are poisonous plants, germs and disease, drastic change in temperature, and drastic change in landscape. Sex: Testes function only in a narrow range of temperature. The extinction of the Tyrannosaurus Rex was obviously due to the same reason. Siegel, who presumed that massive overdosing due to poisonous flowering plants drugs may have caused the extinction of the dinosaur and finally, the theory of Luis and Walter Alvarez which is focused on the possibility of a huge asteroid striking earth and causing the dinosaurs, as well as other species, to become extinct. It generates no testable hypothesis, and offers no way to obtain potentially. Secondly he mentions drugs, this theory was supported by Ronald K.