This website uses cookies to ensure you have the best experience. Learn more

Investigation Of The Polar Dinosaur Essay

957 words - 4 pages

Investigation of the Polar Dinosaur

Today we know through the evidence of fossils that dinosaur and other large reptiles once lived on every continent on earth. If you were a paleontologist in charge of finding fossils where would you look first? In the search for evidence the icy continent of Antarctica would be perhaps the last continent you would think to search. However, during the last twenty years a remarkable number of prehistoric fossils have been found in regions close to the South Pole. Beginning in 1960 with an expedition lead by a man named Spitzbergen, fossilized footprints from non-avian dinosaur showed the region once had a drastically different climate. In the years that followed more fossilized remains were collected in costly expeditions, often to remote areas near the north and South Pole. However, each find can present unique information about physiological adaptations various forms of life made to polar latitude temperatures during the Mesozoic era. An article “Polar Dinosaurs” by Thomas H. Rich in Science, published in February of 2002, explores the fossil evidence and presents the following ideas about the environment and the types of creatures who lived and adapted to the seasonal conditions present at these polar latitudes.

The ice fields of the North Slope of Alaska we know today are thought to have had temperatures ranging from 13-2 degrees Celsius during the Cretaceous period. This hypothesis is based on evidence from flowering plants, and leaf fossils found from the late Cretaceous found in the region. So life around the poles existed in a climate similar to that of Portland, Oregon, which has a mean temperature of 12 degrees, and may have gotten as cold as Alberta Canada’s average of 4 degrees. Fossil evidence found near the northern polar latitudes shows the dinosaurs that lived there to be similar to their southern relatives. However, a lack of evidence in certain species, especially crocodilians (cold blooded reptiles), would seem to suggest some non-avian dinosaurs were warm blooded and able to survive near freezing temperatures.

In southeastern Australia, temperatures during the Mesozoic were thought to be even lower than in the North. Deposits of dinosaur fossils along with hummocky vegetation and the presence of permafrost suggest the creatures lived in temperatures between 3 and negative 6 degrees Celsius. The size and amount of some of the vegetation is unexplainably large serving in temperatures unheard of for vegetation today. Dr. Rich writes, “It is difficult to imagine how this community functioned if temperatures were as low as physical indicators suggest. “

Did the earth rotate on a different inclination during the Mesozoic era? It would explain the high temperatures and actually give regions in high latitude longer periods of daylight. It is not certain if the...

Find Another Essay On Investigation of the Polar Dinosaur

The Magnetism of Polar Opposites Essay

1864 words - 8 pages climbing the ladder of social status, obtaining money, and achieving fame, and he becomes “confused and [a] little disgusted” (24). Essentially, this exposure to the hungry pursuing led Nick to not seek out these extravagantly greedy dreams but to work hard enough in the bond business to humbly live in New York. Nick is content with his average life until he meets his polar opposite, Jay Gatsby, at one of his parties. Though believing Gatsby is

The Consequences of the Economic Development of Polar and Sub-Polar Regions

1406 words - 6 pages The Consequences of the Economic Development of Polar and Sub-Polar Regions Although indigenous populations established themselves centuries ago, polar and sub-polar regions of the Arctic and Antarctica have only fairly recently begun to develop. Originally classified as remote regions in the world, where the only activities, which took place, were small-scale fishing and hunting by locals in order to survive, they have

The Effects of Global Warimgin on Polar Bears

648 words - 3 pages The effects of Global Warming on Polar Bears For years, we have heard of the devastating effects of global warming and how the melting of the polar ice caps will cause severe climate changes. One animal that has suffered most from global warming is the polar bear. Global warming has caused the polar bear population to decrease due to the results of having to swim longer distances, loss of habitat, and lack of mates to reproduce offspring

The Effects of Climate Change to Polar Bears

715 words - 3 pages Are you aware of climate change? Many people are clueless on the temperature change that our world is going through this very second. This change is affecting many species especially polar bears and even us humans. The polar bears could potentially because extinct due to their homes melting away and there food sources becoming harder to excess. People of the third world countries are the ones greatly affected by this climate change because of

Effects of global warming on wildlife at the Polar Regions

987 words - 4 pages all living things have come to rely upon. Currently, these changes are having the most visible and significant impacts to the Polar Regions. Marine and terrestrial fauna at the earth’s polar regions are negatively impacted by global climate change due to the increase in temperatures most of which are now listed as endangered species due to the destruction of their habitat and alteration of their food web. The earth’s polar regions are the ice

Environmental Impact Of Global Warming On The Polar Regions

870 words - 4 pages Global warming is the gradual warming of the Earth's atmosphere supposedly caused by the burning of fossil fuels and industrial pollutants. The effects of global warming are becoming a main concern in today's society. The environmental impacts of global warming on the Polar Regions are polar bears dying, ice is thinning, polar caps melting, temperature change, sea levels rising and ocean temperatures are getting higher. In figure 1 there is a

The Federal Bureau of Investigation

2005 words - 8 pages The Federal Bureau of Investigation The agency now known as the Federal Bureau of Investigation (FBI) was founded in 1908 when Attorney General Charles J. Bonaparte appointed an unnamed force of Special Agents to be the investigative force of the Department of Justice (DOJ). Prior to that time, DOJ borrowed Agents from the U.S. Secret Service to investigate violations of federal criminal laws within its jurisdiction. By order of Attorney

An Investigation of the UN

1061 words - 5 pages millennium development goal of promoting environmental sustainability by limiting climate change in South and North America?’ This investigation shall focus on the previously mentioned question as this a very interesting topic to further research on, also as I believe that the UN has played an enormous role in promoting environmental sustainability in South and North America, and therefore would make a good topic to further research on. This topic is

Investigation of Jack the Ripper

2265 words - 9 pages Investigation of Jack the Ripper Jack the ripper was an unknown serial killer, he kept his true identity a secret from the world. Many people today see Jack the Ripper as a mystery which will never be solved. People have tried for many years to find out the mystery of Jack the Ripper but can not and will not succeed. The fact that no one knows the identity of him keeps the mystery of the unknown killer alive. It will

The Investigation of William McGuire's Murder

2421 words - 10 pages On April 28, 2004, after closing on his dream house, William McGuire was brutally murdered. His body was severed into three pieces, placed into three matching Kenneth Cole suitcases and then dumped in the Chesapeake Bay. The investigation of his murder would span three years, involve two different investigative teams and end in the conviction of his wife, Melanie McGuire, based on circumstantial evidence (Glatt, 2008). The discovery of this

The Federal Bureau of Investigation - FBI

1086 words - 4 pages To uphold the law through the investigation of violations offederal criminal law; to protect the U.S. from foreign intelligenceand terrorist activities; to provide leadership and law enforcementassistance to federal, state, local, and international agencies; andto perform these responsibilities in a manner that is responsive tothe needs of the public and is faithful to the constitution of theU.S.: this is the mission of the Federal Bureau of

Similar Essays

The Significance Of Dinosaur Art Essay

1014 words - 4 pages The Significance of Dinosaur Art Dinosaurs are creatures that seem to fascinate humans, since all we have left are their fossils. Although, through art, their bodies can be put back together and we have a better sense of what they looked like. The problem with art is that pictures can sometimes be disproportionate, unrealistic, or even made up. Young children who learn about dinosaurs may think that they are actually different

The Importance Of Dinosaur Discoveries Essay

1839 words - 7 pages The Importance of Dinosaur Discoveries When a paleontologist makes a discovery about Dinosaurs it is usually a celebrated event and will appear on all sorts of covers of magazines and even newspapers, with good reason. These discoveries are often quite exciting for a few reasons. The whole experience of finding a fossil that is hundreds of millions of years old is quite an adrenaline rush, but the fact that each discovery has the ability

The Cause Of The Dinosaur Extinction

1126 words - 5 pages The Cause of the Dinosaur Extinction The biggest mystery surrounding the dinosaur is how did they die? For over 130 million years dinosaurs ruled the earth. Then 65 million years ago, at the end of the Cretaceous period, they died out. Nobody can really say what actually eliminated the species, although everyone has their very own idea. Asteroid impact, atmospheric changes (hot to cold), catastrophic eruptions and astronomical events

The Adventures Of Pete The Purple Dinosaur

2768 words - 12 pages dispose of the king and take I will dispose of the DKing (Dun Dun Dun). Then the kingdom will be all mine (Dun Dun Dunnn) Wahahahahaha!” he thought to himself as he stood up from where he was sitting and walked over to the queen, “wow!” he thought, “she is really pretty...and she’s all mine! Wahahahahaha!” He smiled an evil smile and then he realized that the purple dinosaur might try and stop him, this made kidnapping the queen even harder to get