Cannibalism Among Dinosaurs
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.
This recent discovery has left scientists with many questions to be answered. The discovery is quite important because any research up until now has failed to uncover any evidence that would reveal that dinosaurs fed among their own kind. Ray Rogers whom has been leading the ten-year excavation states in the article that there are at least 14 current day animals that still practice cannibalism such as lions, komodo dragons, crocodiles, hyenas, black bears and grasshopper mice, but in contrast, any evidence of cannibalism among dinosaurs is sparse.
This article was also particularly interesting to me because this is a recent find and there is little to no literature published concerning the idea that dinosaurs may have been cannibals. This is a new fossil find in which makes any and all research being administered equally as important. The time period of these fossils date back nearly 65 to 75 million years ago to the late –Cretaceous period when dinosaurs neared the end of their existence on earth. The fossils that have been discovered that tend to persuade researchers to believe dinosaurs were cannibals have been located in Northwest Madagascar’s bone beds. Rogers states, “ Fossilized soil samples from the same region are red and oxidized, hinting that the area was arid, with food in short supply. The animals may have traveled to the river to find sustenance and died there.
Ceratopsians and Pachycephalosaurs Around 144 million years ago, began the emergence of the Ornithischian dinosaurs during the Cretaceous period and diversified into North America and Asia. Ornithischians were classified as having a hip structure similar to that of birds, although they are not the descendants of birds. Marginocephalians, meaning "fringed heads" are a group of Ornithischians that have a distinctive skull structure, consisting of a slight shelf or bony frill on the back of the skull, a unique palate, and a short hip structure. These herbivores include two major groups: the Ceratopsians and the Pachcephalosaurians. These plant-eaters include the Ceratopsians, horned dinosaurs such as the Triceratops, Styrachosaurus, Pentaceratops, and the Protoceratops.
Oviraptorosaurians are known for their specialized skulls and for being egg thieves, which is where they get their name. It was later discovered that they were more than likely near the nests not to eat the eggs but hatch them. In Mongolia there was a discovery of a fossil of a female Oviraptor shielding her nest from a sandstorm (Mayell). They are thought to have evolved in the early Cretaceous (Xu). The Cretaceous period, is the interval of time that came just after the most well known of periods in the earth’s history, the Jurassic. Xing Xu, the man who with his team found Incisivosaurus, works for Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, China. Xu and his team believe that this find proves that not all theropods ate meat (Ibid). In an article for the National Geographic, Phillip Currie of the Royal Tyrell Museum of Paleontology in Canada says, "These teeth are totally inappropriate for eating meat. Even with the beak, we had always assumed that oviraptorosuars were still carnivorous—hawks and eagles do it quite well.
“The Health Insurance Portability and Accountability Act (HIPAA) of 1996 made it illegal to gain access to personal medical information for any reasons other than health care delivery, operations, and reimbursements” (Shi & Singh, 2008, p. 166). “HIPAA legislation mandated strict controls on the transfer of personally identifiable health data between two entities, provisions for disclosure of protected information, and criminal penalties for violation” (Clayton 2001). “HIPAA also has privacy requirements that govern disclosure of patient protected health information (PHI) placed in the medical record by physicians, nurses, and other health care providers” (Buck, 2011). Always remember conversations about a patient’s health care or treatment is a violation of HIPAA. “All PHI is included in the privacy requirements for example: the patient’s past, present or future physical or mental health or condition; the provision of health care to the individual, or the past, present, or future payment for the provision of health care to the individual, and that identifies the individual or for which there is a reasonable basis to believe it can be used to identify the individual” (Buck, 2011). Other identifiable health information would be the patient’s name, address, birth date and Social Security Number (Keomouangchanh, 2011). (Word count 197)
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 ...
The tyrannosaurus Rex was estimated to be about 15 feet high, 40 feet long, and weighing in about 6 tons. As you can see the tyrannosaurus rex was huge. Actually they were one of the biggest carnivores to walk the earth. But were they even carnivores? “Paleontologist Jack Horner of the Museum of the Rockies (Bozeman, MT) has proposed that T.rex could not have been a predator.” It is evident in most of the fossil remains of the tyrannosaurus rex, that it was not built to chase down its prey. For example, the T-Rex had small eyes, which made it hard for it to spot its prey. The T-Rex also had small arms, which did not allow it to grab its prey, and it had huge legs meant for long distance travel, not small distance speed. Also the teeth of the T-Rex, shows that they may not have eaten other dinosaurs. “And that there is no evidence for predation — bones have been found with tyrannosaur teeth embedded in them or scratched by them, but so far no study has shown that tyrannosaurs killed other dinosaurs for food (a bone showing tyrannosaur tooth marks that had healed would be strong evidence for predation).” All these facts are proven true in Jurassic park. ...
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.
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
The act of cannibalism is sometimes committed as criminal act, and in some blizzard cases survival, which is considered taboo. Cannibalism is the act or practice of humans eating the flesh or internal organs of other human beings. (Cannibalism, Wikipedia) Plane crashes; shipwrecks and religious ceremonies are assimilated with these acts against humanity. The act of cannibalism has made headlines across boarders in Japan, Australia, Russia, Pacific Island, Siberia and the United States. Therefore, the main question is: Is cannibalism ever acceptable? The dilemma involve, imagine that one waiter, Daley Smith, 18, single and 5 white collar American businessmen, Brian Daley, 36 married, Jim Carey 24, single, Steve Hugo, 28, single,
Embryonic cells should be allowed to be used because of the medical benefits they provide. They can be used to cure diseases such as Parkinson’s disease, diabetes, traumatic spinal cord injury, Duchenne’s muscular dystrophy, heart disease, and even vision and hearing loss (nih.gov 2009). There is no problem using them for medical purposes and it is not immoral to use them for this reason. Embryonic cells have the potential to save lives. Therefore, the usage of embryonic cells outweighs the ethical issues.
The debate of whether dinosaurs were cold blooded or warm blooded has been ongoing since the beginning of the century. At the turn of the century scientists believed that dinosaurs had long limbs and were fairly slim, supporting the idea of a cold blooded reptile. Recently, however, the bone structure, number or predators to prey, and limb position have suggested a warm blooded species. In addition, the recent discovery of a fossilized dinosaur heart has supported the idea that dinosaurs were a warm blooded species. In this essay, I am going to give supporting evidence of dinosaurs being both warm and cold blooded. I will provide background information on the dinosaur that was discovered and what information it provides scientists.
“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 theory of goal setting was developed by Edward Locke and Gary Latham (1990) and states that there is a direct relationship between the setting of specific high goals and task performance. A higher degree of employee performance is obtained when specific goals are set compared to the performance achieved when employees are simply told to do their best (Latham & Locke, 2007). These findings have helped shape leadership styles and improve employee performance and job satisfaction (Posthuma & Al-Riyami, 2012).
The basic premises of the goal-setting theory is the relationship between how difficult and specific a goal is and people’s performance. We live in a goal-oriented society as people usually adhere to specific targets with a plan of action for guidance. Lack of accomplishment of goals leads to job dissatisfaction. Locke’s Goal-Setting Theory from 1968 has been a powerful way of motivating people and is often utilized in whole organizations to increase focus and productivity. The more specific and difficult goals are designed the more likely staff can achieve these goals as opposed to being too vague or easy goals. An organization should consider the five following principles of goal setting: clarity, goal difficulty, goal acceptance, goal specificity and feedback. Organizations that set clear and challenging goals and are open to honest feedback have a greater chance of achieving goals. According to Locke and Latham (2002), goal setting can be useful in predicting job satisfaction. Job satisfaction is an important attribute for employee productivity and commitment to the
...r of all dinosaurs (Thomas, 2011). It is believed that on the sixth day there were all sorts of dinosaurs, many different types hence proving that the prosauropod were only but a different type of dinosaurs. People also believe that the Bible refers the sauropods as the beast of the earth.
Erdman, Shelby Lin. "Scientists Reaffirm Theory That Giant Asteroid Killed Dinosaurs." CNN. Cable News Network, 09 Mar. 2010. Web. 07 Mar. 2014.