Discovery of the Dinosaur with the Fossilized Heart
Dinosaur fossils are one of the few ways in which scientists can study the history of life on earth millions of years ago. Each new discovery is unique in its own way and provides valuable information about the past. No two finds are exactly identical; therefore, when dinosaur remains are uncovered, the possibility and excitement of new information or even a new species exists. Until the year 2000, no dinosaur has ever been found with a fossilized heart. Scientists at North Carolina State University and the North Carolina Museum of Natural Sciences discovered a sixty-six million year old Thescelosaurus with a heart.
The Thescelosaurus was a “bird-hipped” dinosaur or an ornithischian ( Russell 2). This herbivore lived near the end of the Cretaceous period, about one million years before the conclusion of the dinosaur era. Thescelosaurus was about the size of a short-legged pony, according to paleontologist Dr. Dale Russell and was native to North America from Wyoming up to Alberta, Canada.
This particular Thescelosaurus was discovered in Harding County, northwestern South Dakota in 1993. It has been estimated to weigh nearly 663 pounds and thirteen feet long. The remains were located in a poorly consolidated channel of sandstone, exposed in the upper half of the Hell Creek Formation (Fisher 2). Scientists have named this discovery Willo, after the wife of the rancher on whose property it was found.
The discovery of Willo is unique because it is the first dinosaur with a fossilized heart. However, this was just the beginning of an extraordinary find. “Not only does this specimen have a heart, but computer enhanced images of its chest strongly suggest it is a four-chambered, double-pump heart with a single systemic aorta, more like the heart of a mammal or bird than a reptile,” according to Dr. Dale Russell. Russell is a paleontologist at North Carolina State University and a senior research curator at the N.C. Museum of Natural Sciences. This discovery is unusual because all modern reptiles, except the crocodile, contain a single ventricle that pumps blood to the lungs and the rest of the body. All modern reptiles have paired systemic aortas developing from the ventricle, which distributes the blood to the body. “In contrast, the four chambered heart of modern birds and mammals has two completely separated ventricles and a single systemic aorta, ensuring that only completely oxygenated blood is distributed to the body” (Fisher 2).
Incisivosaurus Gauthier was what is believed to be a primitive Oviraptorosaurian that was recently discovered in China. The Theropod and its highly specialized skull is described as a bizarre creature that lived 128 million years ago (Gee). The characteristic that “sticks out” the most are it’s rodent-like teeth. Harry Gee has described the dinosaur as “a [cross between] Roadrunner [and] Bugs Bunny” (Ibid.) and Hillary Mayell calls it a “’Weird’ Bucktoothed Dino.” (Mayell)
... until “the prodding became rhythmic”(Golding 182). Then, “Roger advanced upon them as one wielding a nameless authority” (Golding 182). Samneric, in this situation, are illusions to the political opposition that are present in most totalitarian societies. Samneric are treated as political prisoners and bullied into keeping their mouths shut about their views and into accepting the new leader’s way of ruling, which is with an iron, unyielding fist. Golding, in this situation, tries to show the reader how a totalitarian government does not allow any opposition to the official government’s idea. If a person disagrees with the government, then it is better to keep that opinion to their self or face severe backlash from the government. All in all, Jack’s newly increased tribe only happened due to Jack using fear and brutality as a means to keep his tribe in line.
In the early 1800’s, a new discovery that left paleontologists in awe was the fossil finding of the immeasurable amount of species of reptiles, Ichthyosaurs. Greek for “fish lizards”, these fossils were found all over the world. Because these large aquatic reptiles migrated just as whales do today, paleontologists have had the amazing advantage of collecting fascinating bone fragments throughout the past 177 years. Ichthyosaurs swam the ocean life from about 245 million until about 90 million years ago- approximately the same time dinosaurs ruled the land. The earliest Ichthyosaur fossil findings were in parts of Canada, China, Japan, and possibly Thailand. Countless fossils came from coatings of limestone produced out of the ocean-floor ooze that was predominantly superior at preserving very well facts of the creatures it digested (Perkins 2).
At a time, scientists believed all dinosaurs were cold-blooded. However, with a recent discovery of a dinosaur found with a fossilized heart in the northern part of South Dakota in 1993, many paleontologists are starting to think that there were some dinosaurs that were warm blooded.
Where should the nostril on dinosaur models be placed? Although it seems like a rather simple question, it is a topic that has been recently researched so that scientists can feel reassured in creating anatomically correct models of dinosaurs. Amniotes (a group which in the Triassic spilt into reptiles and synapsids and which include dinosaurs), have large nasal openings, but since the nostril is made up of flesh and cartilidge, it is almost always not preserved in the fossil record (Lauren and Gauthier 1996). These were often huge in dinosaurs, such as the sauropods, hadrosaurines, and ceratopsids, so that there are several places in which the nostrils could be placed. For many years, scientists have placed the nostrils on dinosaurs in the caudal position, which is located on the top of the head. The nostrils were placed in this location because it was thought in the mid nineteenth century that sauropods lived in water (Clarke 2001). This was believed because at the time, palenotolgists thought that sauropods probably weighed several tons, and that the animals could not have supported themselves on land (Rincon 2003). It was believed that having the nostrils in this position would help the dinosaurs to breathe easily, instead of having to lift their heads completely out of the water (Clarke 2001).
Some symptoms of Obsessive compulsive disorder (OCD) are fear of germs, perfectionism, and rituals. When someone has OCD they are afraid of germs and might constantly be washing their hands or cleaning their room. Someone who suffers from OCD needs everything to be perfect and they might organize their closet by color size. Their rituals calm their anxiety. Certain rituals are things such as checking the stove a certain number of times to make sure it is off or tap their finger a number of times just because it makes them feel better. Obsessive compulsive disorder can be associated with other mental disorders that cause stress and anxiety, but it can be treated with cognitive behavioral therapy and medication.
Until recently, scientists believed the chances of finding a fossilized dinosaur heart were extremely slim. The heart belonged to a 66 million year old dinosaur found in Harding County in Northwestern South Dakota. The dinosaur, found in 1993, weighed over 650 pounds and was 13 feet long. The dinosaur was in fairly good condition with the exception of the left side of the skeleton. The small, plant-eating Thescelosaurus, nicknamed ‘Willo’ has been acquired by the North Carolina Museum of Natural Sciences. Thescelosaurus was an ornithischian, or "bird-hipped," dinosaur that lived in the latter stage of the Cretaceous period. This was approximately 1 million years before the end of the dinosaur era. Native to North America, its range extended from the northern United States up into Canada. Since using the 3-D software to reveal Willo's heart, scientists have also used it to create 3-D images of the fossil's skull, and of remains from other dinosaurs in the museum's collection. (Fisher, Paul)
Obsessive Compulsive Disorder or OCD for short, has affected numerous people; one being Jeff Bell, the author of the book Rewind, Replay, Repeat: A memoir of Obsessive-Compulsive Disorder. This book has much insight on OCD and touches many interesting facts that some people would never know prior to reading.
Hutchinson, John R., Garcia, Mariano “Tyrannosaurus was not a fast runner.” Nature 28 Feb 2002: 1018-1021
Obsessive Compulsive Disorder is a disease that a lot of people suffer with in society especially young adults. While it is not a disease that is deadly, it does affect the victim in every day aspects of their life and can ultimately control their lives. Obsessive Compulsive Disorder (OCD) is defined by the National Institute of Mental Health as, “… a common, chronic and long-lasting disorder in which a person has uncontrollable, reoccurring thoughts (obsessions) and behaviors (compulsions) that he or she feels the urge to repeat over and over”. The thoughts that individuals have when suffering through Obsessive Compulsive Disorder cannot be restrained and really can disturb the individual. Thoughts or actions that people may have can range from worrying about daily occurrences, such as washing their hands, to having thoughts of harming people that are close to them. People tend to have these reoccurring compulsions because they believe by doing them or thinking them, they will either prevent something bad from happening or because it eliminates stress that they have. This disease can last a lifetime and can be very detrimental and disabling to how one lives their lives. Individuals can start to see signs of OCD in either late adolescence or even early adulthood and everyone is susceptible. When it comes to classifying this incurable disease, there is much debate on whether or not it a type of anxiety (Abramowitz, Taylor, & McKay, 2009). It is important to be able to understand this mental disorder since so many people are diagnosed with it. While there are treatments for OCD, there are no cures yet. Treatments could range anywhere from taking prescribed medication to just going to therapy and counseling fo...
William Golding says that Jack represents dictatorship. He wanted to be the chief but the rest chose Ralph “I cut the pig’s throat” (69) he said. He was the one that hunt the pigs but he needed to paint his face so the pig couldn’t see him but he was also trying to hide from himself. He wanted to be better than the other and made them think he was tough. Jack was selfish and arrogant. He says “who cares what you think fatty”. He didn’t care about the other’s needs and concerns. He thought that all he did and believed was right and nobody could beat him.
According to Robbins, DeCenzo, and Coulter (2011) “motivation is the process by which a person’s efforts are energized, directed, and sustained toward attaining a goal” (p. 267). Organizations are always looking for new ways to motivate employees. In a global economy it is important to understand that cultural differences can impact how an organization can motivate its employees. Geert Hofstede (as cited in Sledge, Miles, & Coppage, 2008) believed there are five dimensions of culture. These five dimensions are power distance, individualism versus collectivism, uncertainty avoidance, masculinity versus femininity, and Confucian dynamism (p. 1670). This paper will discuss each dimension of culture and how they could effect employee motivation.
The remains of these dinosaurs were found on every continent except Antarctica thus proving that they were very widespread. Sauropods had the most long lived life span when compared to other animals. Their existence expanded up to 100 million years. This was a very long time, especially for such a large animal to maintain itself (Klein, 2011). However, after many years, they began to die one by one due to the challenges that presented themselves in the wild. For example, vegetation became scarce. They began to starve and became an easier prey to predators. Eventually, this led to
Everyone is born into some form of family, with the family taking the responsibility of nurturing, teaching the norms or accepted behaviors within the family structure and within society. There are many types of families, which can be described as a set of relationships including parents and children and can include anyone related by blood or adoption. Family is the most important, “for it is within the family that the child is first socialized to serve the needs of the society and not only its own needs” (Goode, 1982).
Family is the most important thing in the world a single word, with many different meaning. As the backbone of society family plays an important role in who an individual can be. The family can determine the class of an individual, the education level, and their religion. There are different types of families that have existed and some that are still present today. In the past the nuclear family was the ideal model. The nuclear family also called domesticity is characterized as, women being responsible for keeping the home and children and men being the breadwinner. It is two adults living together in a household with their own or adopted children. Another type of family is the extended family. The extended family is defined as a family group consisting of more than two generation of relatives living either within the same household or very close to one another. Grandparents, aunts, and in-laws are examples of extended families.