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History of dinosaurs essay
History of dinosaurs essay
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Dinosaurs held their own, according to studies, for at least 150 million years. After becoming extinct and finding fossilized remains dinosaurs have become a way in which we not only measure the changes that have occurred as the planet evolved, but also how we express ourselves today.
We use dinosaurs to represent the changes in nature that have occurred throughout time. Studies found that although the “oldest rock did not show evidence of life, the progression of plant and animal life that changed in recognizable intervals, from ancient life, age of reptiles to the age of mammals” (Dino Nature Metaphor, slide 6), measured the age of the earth. When we think of dinosaurs in relation to nature, we think of that very powerful force that controls the cycle of life. Nature was able to yield such magnificent ferocious creatures that walked the earth and then take them back when they served nature’s purpose. Dinosaurs fit perfectly in nature’s constant
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Toys, movies, clothing is a clear indication that our fascination with dinosaurs is much more than what the word represents, but also a genuine interests in the actual creatures scientists have uncovered. Dinosaur toys allow children to use their imagination to transport back to a time when dinosaurs walked the earth, became extinct, and eventually became fossils. Any kind of toy figure encourages imagination, dinosaur figures gives children an opportunity to learn about the science behind dinosaurs and fossils. Dinosaur toys, movies, clothing and advertisements also encourage children to ask questions, which becomes an opportunity to visit the library. “Judging from their frequent appearances in the movies and on television, dinosaurs have a firm hold in the popular imagination, one realm in which they show no danger of becoming extinct” (History.com, 2009). They are fierce, strong and because of anthropomorphism, dinosaurs are our
Around 144 million years ago, began the emergence of the Ornithischian dinosaurs during the cretaceous period and diversified into North America and Asia.
“Sex, Drugs, Disasters, and the Extinction of Dinosaurs” is written by Stephen Jay Gould, professor of geology and zoology at Harvard. This essay is one of more than a hundred articles on evolution, zoology, and paleontology published by Gould in national magazines and journals. It tells about scientific proposals for the extinction of dinosaurs – a confusing but an exciting problem that humanity tries to solve. By analyzing and describing each of the claims for the reptiles’ demise – sex, drugs, and disasters – Gould differentiates bad science from good science and explains what makes some theories silly speculations, while the other, a testable hypothesis.
The difficulty in re-constructing dinosaurs for television and movies lies in the fact that not everything can be preserved. Fossilized bones create the skeleton of a dinosaur, thereby allowing scientists to study how they moved, how big they grew, and how different body parts worked as a whole. But what children see on television: the scaly green skin of the brontosaurs or the brown hair of a mastodon may not hold much fact. Unfortunately, particular physical features cannot be fossilized. Skin, cartilage, hair and other soft tissues usually decay before leaving science no clues to what these dinosaurs truly looked like. The public also cannot know the social behaviors of dinosaurs. Movies generally portray all carnivores like the T-Rex as monstrous bullies while the larger vegetarians all seem slow and peaceful. Up until recently, no hard evidence can be found to help support or dismiss any of these stereo-types. In the barren deserts of Argentina, a team of scientists from the National Geographic Society came across a massive graveyard of fossilized dinosaur eggs. In 1997, Dr. Luis Chiappe and Dr. Lowell Dingus discovered a rare opportunity to finally study the external functions of an ancient creature that contained fossilized teeth imprints, embryos and skin impressions. This unearthing unlocks endless prospects to learn about dinosaur behavior and external attributes, topics which used to be some of the most problematic areas of study. The most remarkable aspect, of course, is how the most delicate of information is found within an egg.
Of course it was the movie Jurassic Park who seemed to coin the phrase “Dino DNA.” This movie gave the public the thought that, a) it is possible to find dinosaur DNA and b) we can clone dinosaurs from this DNA. This essay is not going to pick apart Jurassic Park’s scientific value, however it will share the current knowledge and information on dinosaur DNA. The discovery of DNA is important because it may uncover different bits of information. The idea of cloning dinosaurs, especially at this point is out of the question. It is really hard to clone living animals today, with full DNA and genome strands, we can’t even think about recreating animals millions of years ago.
Dinosaurs were first believed to be cold-blooded because they were thought to be related closely to reptiles which are cold-blooded creatures. Cold-blooded animals don’t actually have “cold” blood, instead they rely on the temperature from their environment to regulate their own body temperature. They do this by taking advantage of external heat by basking in the sun, and by lying in the shade to cool down. A more correct term is “ectothermic” which means “heat from outside.” On the other hand, a warm-blooded animal creates heat internally by chemical reactions inside their body. They are able to regulate their body temperature internally instead of relying on their environment. Author of the article, “Dinosaurs: Warm or Cold Blooded?” Beverly Eschberger explains, “endothermic animals have a continually high requirement for food to fuel the heat generation. Providing they can find food their constantly-optimum body temperature means that they can stay active even when it is very cold” (par 3). Even though it was believed that dinosaurs were closely related to cold-blooded reptiles, most dinosaurs had similar behaviors of a bird which is a warm blooded animal. Believing dinosaurs were warm blooded would help explain the reason why dinosaurs were so dominant and plentiful for such a long period of time. There are many other factors that play a vital role in ...
Since kindergarten, our heads have been filled with fantastic pictures and stories about the great dinosaurs that have long been extinct. But like a lot of our childhood education, scientific information is often simplified and exaggerated by teachers, parents and the media. The case of the T- Rex is an exceptional example of how the media can create a stereotype based on incomplete and outdated information, which ends up asserting itself back in mainstream popular culture. Thus, a certain myth of the Tyrannosaurus Rex being a speedy eating machine, becomes a social “fact” based on fiction.
In Steven Spielberg's Jurassic Park, dinosaurs come to life on the big screen for audiences' worldwide. Millions have watched this film, but what number of them have halted to wonder at the truth behind the story? How many have stopped to think whether the dinosaurs are portrayed correctly within a scientific aspect? Unbeknownst to many, there are a number of mistakes in Spielberg's film regarding the dinosaurs, from how they were recreated to their common names.
“we thought we had them under control, but we were wrong, and now they want revenge”. The greed of the scientists was too high that it blinded them and didn’t let them see what could result from such an experience. The Scientists wanted to bring back what god got rid of million years ago, and they wanted to beat god’s powers with their technology. They were successful at first which increased their ago, but then when the dinosaurs got out of control, the scientists realized that they had messed up trying to beat god. This reflects and supports the theme of the movie which is, the hubris of men using technology to try to play god will lead to their downfall, and indeed it did as we saw with the
Typically, when an individual browses through various newspapers or watches the evening news they are most likely to see or hear some new and groundbreaking news concerning a scientific breakthrough. As I was looking through various scientific journals I came across an article that caught my eye for numerous reasons, but one in particular. The heading of the article read, “Cannibal dinosaurs revealed by tooth marks.” These prehistoric creatures that have been viewed by the public for centuries as being wild and ferocious beasts, are presently being seen more then just that. Recent evidence originating in Madagascar is leading researches in the direction that dinosaurs consumption of food did not strictly adhere to the food chain but instead fed amongst their own kind.
Jurassic Park is a fantastic movie for its life-like re-creation of dinosaurs and its outstanding use of computer generated images and sounds. From the first scene where dinosaurs enter the frame to the last, they bring a level of excitement to the screen like only the mighty T-Rex does. Industrial Light and Magic and Stan Winston’s
“...99.9 per cent of all [species] that have ever existed are now extinct.” (Benton 1) After one hundred and sixty million years of domination, the reign of the dinosaurs ended in fire and ice. Sixty five million years ago, the largest volcanoes in the history of the Earth erupted across what is now India, effectively annihilating the dinosaurs by spewing out noxious gas and ash, that effectively blocked out the sun killing off most vegetation and breaking the food chain, leaving the dinosaurs to starve. Compared to other groups of animals the dinosaurs were the most vulnerable to such a climatic event and the result was the end of the dinosaurs’ glorious evolutionary history.
The dinosaur could not have lived for ever. No creatures, no plants, no tiny bacteria are
The Jurassic Period of our earth’s history was one of great change. It began with a major extinction even, bounced back, and was yet again the victim of an extinction event. The Jurassic was a flourishing time of new species adapting, changing, and modernizing to suit the ever-changing world they
In the end have dinosaurs would not be the most brilliant idea at this point of our life time. It would put our country into more debt that we do to need and take up space we do not have. Keeping the creatures alive in this world would be a challenge, sense how bad the environment is. Having Jurassic Park happen in real life would be one of the scariest things that could ever happen, Jurassic Park 3 was pretty scary and that was just a movie. Last of all I am pretty sure God does not want us bringing back the things that He put to rest and even distorting the animals that God created in this