Richard Leakey- Homo habilis Richard Leakey was born December 19, 1944 in Nairobi, Kenya. His parents were the esteemed anthropologists Louis and Mary Leakey. Richard first became a tour guide in Kenya, but changed his mind when he found an extinct human jaw. He then schooled himself by completing a two-year secondary education program in six months. From 1967-77 he and his co-workers dug up around 400 fossils, that accounted for 230 individuals. The most important discovery was an almost complete skull found in 1977, which Richard believe to be a new species called Homo habilis. Richard Leakey’s accomplishments are discovering the crania of Australopithecus boisei in 1969 with the archaeologist Glynn Isaac on the East shores of Lake Turkana, Homo habilis in 1972, and Homo erectus in1975. He was appointed administrative director in 1968 of the National Museum of Kenya, and in director 1974. Since 1989 he has been director of the Wildlife and Conservation Management Service, Kenya. His publications include Origins in 1977 and The Making of Mankind in 1981, both with Roger Lewin. Australopithecus africanus inhabited the earth roughly 3 - 1.6 million years ago. The characteristic difference between the Ausrtalopithicus afarenis and africanus is the height and brain capacity. The height of the africanus is 1.4 m and the brain capacity is approximately 400 - 600 cc. Smaller incisor teeth and a slightly flatter face are also noted. The afarensis has a height of 1.2 m and a cranial capacity of 380 - 450 cc. Sticks, and stones were most likely used to gather food by the Australopithecus africanus. Homo habilis (also known as "handy man") is theorized to have lived with Australopithecus africanus. Homo habilis was known as “handy man” because he used primative stone tools. The flat face and large molars of the Homo habilis resemble the Australopithecus lineage. The brain size of the Homo habilis is about 700 cc which is larger than the Australopithecus). The "apelike" body structure with long arms and a small body was a characteristic of the Homo habilis. Recent discoveries, such as from Lake Turkana, of better-preserved fossils have revealed new insights on early Homo in the Plio-Pleistocene. Of this new habilis material, the most amazing is a nearly complete cranium discovered in 1972 at East Lake Turakana. This individual, with a cranial capacity if 775 cm3, is clearly outside the known range for Australopithecines and it overlaps the lower boundary for Homo.
The Australopithecus Afarensis, which is an extinct hominid (A family of primates), is believed to have lived somewhere in between 2.9 – 3.9 million years ago. The A. Afarensis is believed to be one of the best known found species. They are believed to have been able to survive for at least 900,000 years ago if not more than that, being about four times as long of being around than our own species. The A. Afarensis is considered to be a gracile species, meaning to be smaller, more lightly built members of the genus Australopithecus. It is said that the A. Afarensis is the closest to being related to the genus homo, even including the Homo sapiens (The modern human species), when compared to any of the other known primates of that same time. The A. Afarensis fossils that have been discovered have mostly only been found in Eastern Africa
On November 24, 1974, an American Anthropologist by the name of Donald Johanson and his research team, made a ground-breaking discovery that caused a mass dispute in human evolution. Dr. Johanson documented in his book, Lucy The Beginning Of Mankind, the discoveries he and his team have come across. Dr. Johanson and his team discovered a skeleton of a hominid, dated between 3.9 to 3 million years old (164). The hominid, which they referred to as Lucy, was discovered while surveying Hadar, in the Dafar region of Ethiopia (164-166). Lucy’s discovery, a 41% complete human ancestor caused a controversial alteration in the human origins. Lucy was the oldest human ancestor. During the following year, Johanson’s team discovered fossilized remains
Australopithecus afarensis who existed 3.5 million years ago and a 4.4 million year old skeleton of an Ardipithecus ramidus are the closest science has come to discovering the human lineage. Shattered Ancestry an article written by Katherine Harmon discusses the remains of two hominids found within Ethiopia. These skeletal remains have created a huge controversy within the topic of evolution questioning many assumptions that have been made referencing the human lineage. The skeleton of the Australopithecus afarensis was named Lucy and was discovered in 1974. The evidence of her walking upright on her two feet essentially guaranteed her a spot in the human lineage line. Lucy was a chimplike ape that was said to walk upright making scientists believe the human ancestry was simple. The complete skeleton found in Ethiopia of an Ardipithecus ramidus named Ardi completely changed all assumptions made from scientists about the complexity of the human lineage. These remains have encouraged researches that the human line is not the only lineage to have evolved but the chimpanzee line has undergone drastic changes as well. There are many traits that researchers have always directly linked to the human lineage however since these discoveries occurred researchers are reconsidering. The recent discoveries that have shattered what has always suggested what linked a species to the human lineage have changed the certainty of whether it is possible to confidently identify the human’s last common ancestor. Majority of scientist had forgotten that there would have been many hominid species living together at one time. New theories have been suggested since scientists revealed that the foot of a hominid found called the Burtele site was found ju...
Three incomplete skulls of Homo sapiens were discovered in 1997. Bruce Bower’s article “African Legacy: Fossils plug gap in human origins” discusses the fossils. These findings are important because according to the discoverers, they are the oldest known fossils of modern people. The skulls were found in Herto, Ethiopian located in eastern Africa. The fossils are dated between 154,000 and 160,000 years ago.i[1] The fossils were dated radioisotopically.ii[2] Since the fossils are the oldest known fossils of modern people, it is probable that these hominids represent the immediate ancestors of humans that are anatomically modern. Tim D. White’s (et al) article “Pleistocene Homo sapiens from Middle Awash, Ethiopia” describes the discovery of the Herto fossils and the research of the artifacts in great detail.
The species A. afarensis is one of the better known australopithecines, with regards to the number of samples attributed to the species. From speculations about their close relatives, the gorilla and chimpanzee, A. afarensis’ probable social structure can be presumed. The species was named by Johanson and Taieb in 1973. This discovery of a skeleton lead to a heated debate over the validity of the species. The species eventually was accepted by most researchers as a new species of australopithecine and a likely candidate for a human ancestor.
Leaky, Meave G., “New hominin genus from eastern Africa shows diverse middle Pliocene lineages.” Nature 2001:433-440
An education is one of the most important tools a person can acquire. It gives them the skills and abilities to obtain a job, earn a wage, and then use that wage to better their lives and the lives of their loved ones. However, due to the seemingly exponential increase in the costs of obtaining a college degree, students are either being driven away entirely from earning a degree or taking out student loans which cripple their financial prospects well after graduation. Without question, the increasing national student loan debt is one of the most pressing economic issues the United States is dealing with, as students who are debt ridden are not able to consume and invest in the economy. Therefore, many politicians and students are calling on the government to forgive their student loan debts so that through their spending the slowly recovering economy can finally return to its pre-2008 strength.
Much of the debate over whether species should be separated into different groups arises from the morphological differences between individuals of the same species. For example, Australopithecus Afarensis fossils express high sexual dimorphism, which proposes two individual species (Reno et al., 2003). While Australopithecus Africanus, in comparison, shows more realistic size ratios between males and females suggesting one species (Lockwood, 1999). A study performed by Richmond and Jungers looked at the size variation in Australopithecus Afarensis compared to living hominoids to answer the following question: whether it is possible to see such high differences in size between genders of the same species or whether it makes more sense to divide the species into two (1995). In this study, a conclusion of two separate species for the Australopithecus Afarensis was made based on comparisons of fossils such as the humorous and femur with modern gorillas (Richmond & Jungers, 1995). This study compared the size of postcranial fossils. While most of the research has focused on making interpretations based on only cranial fossils, research by Harmon agrees that by looking at postcranial evidence we can gain better insight into the real variations between and within species (2009). Most research assumes high dimorphism wi...
Great War, also known as The First World War, lasted for four year (1914 to 1918). It brought a huge development of war technics and weapons. More number of countries had been involved in the Great War than any previous war. It involved the mobilization of the whole nations, not just an enormous army that turned the war into a “total war”. (Clare 6) However, historians are still arguing about the major cause of the World War I. The major cause will be one of the four long-term causes of WWI, which are Militarism, Alliance, Imperialism, and Nationalism. In my opinion, the two major causes would be Alliance and Nationalism. Alliance is an association between two or more countries for mutual benefits that formed with different treaties, while Nationalism is feeling and principles of patriotic.
Furthermore this article expands upon this subcategory of memory by describing the two types of tasks involved with it: verbal-production ta...
It is a norm and expectation in society today for students to pursue higher education after graduating from high school. College tuition is on the rise, and a lot of students have difficulty paying for their tuitions. To pay for their tuitions, most students have to take out loans and at the end of four years, those students end up in debt. Student loan debts are at an all time high with so many people graduating from college, and having difficulties finding jobs in their career fields, so they have difficulties paying off their student loans and, they also don’t have a full understanding of the term of the loans and their options if they are unable to repay.
To conclude, the First World War occurred due to “nationalism and ethical arrogance”15 with militarism as the result of imperialistic rivalries and a general struggle for power within Europe. In my opinion, this and therewith the war could have been avoided with the means of diplomacy and dialogue. If the countries had understood each others' desires and intentions, instead being solely concerned about one's own hegemonic pursuits and preparing for war, many disputes could have been solved with out violence. However, maybe the knowledge of the leading countries nowadays - that diplomacy is superior to the means of war - had to develop through the dreadful experience of war.
With the ever-increasing tuition and ever-tighten federal student aid, the number of students relying on student loan to fund a college education hits a historical peak. According to a survey conducted by an independent and nonprofit organization, two-thirds of college seniors graduated with loans in 2010, and each of them carried an average of $25,250 in debt. (Reed et. al., par. 2). My research question will focus on the profound effect of education debt on American college graduates’ lives, and my thesis statement will concentrate on the view that the education policymakers should improve financial aid programs and minimize the risks and adverse consequences of student loan borrowing.
...ction of Richard Parker kept Pi aware, by showing Pi the reality of the current situation, assisted him with making the right decisions, committing certain actions, and is his sub-consciousness, his id that fights for survival. In Martel’s Life of Pi, Pi’s coping mechanism has been proven more useful in his projection Richard Parker rather than his beliefs in his religions, which has done nothing for Pi and was useless at that time. Humans and animals are very alike in certain aspects. When it all comes down to survival, humans and animals are almost alike. The human mind brings back the inner id from the human consciousness while in drastic situations to help them cope with it in order to survive. The human psychology has a very interesting way of creating coping mechanisms.
Evolutionary scientists as “hominins” classify humans, chimps, and all of the organisms leading back to their supposed most recent common ancestor. The discipline of paleoanthropologist is devoted to the study of the fossil remains of ancient hominids. Paleoanthropologists face a number of daunting challenges in their quest to reconstruct a story of hominid evolution. Typical hominid fossils consist literally of mere bone fragments, making it difficult to make definitive conclusions about the morphology, behavi...