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Impact And The Dinosaur Extinction
452 wordsTheories of the Extinction of the Dinosaurs Controversy surrounds the extinction of the dinosaurs. According to one theory, dinosaurs were slowly driven to extinction by environmental changes linked to the creeping withdrawal of shallow seas from the continents at the end of the dinosaur era. Proponents of this theory propose that dinosaurs dwindled in number and variety over several million years. An opposing theory proposes that the impact of asteroid or comet caused catastrophic destruction o...
Earth Sixty Five Million Years
1,433 wordsA number of different theories have been assessed throughout the course of this research to attempt to reach a conclusion as to the reason behind the extinction of the Tyrannosaurus Rex. Although all arguments are credible, and supportive with educated information and data, the most conclusive theory of all is The Alvarez Asteroid Impact theory. Alvarez, a researcher at the University of California, discovered a pencil thin layer of Iridium around the rocks in Gubbio, Italy. (New Scientist, 1) I...
522 wordsEvolution A species cannot be created by mutating a species. No matter how many mutations occur the mutation does not evolve the species. No one has ever produced a species by means of natural selection. About 6 hundred million years ago the earliest know fossil record of animals were know to be alive. Amber has been preserved in the earths crust for millions of years. Amber is a gem and is also organic. This is a fossilized material. There is jade-bearing rocks in Guatemala also. Dinosaurs were...
Earth 65 Million Years
732 wordsExtinction of Dinosaurs Ryan Humphries Biology 6th Period Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth. Within five million years it could be considered a dinosaur. They were soon at the top of the food chain. They populated every continent. Then 65 million years ago they vanished. The most powerful creatures ever to live on earth had become extinct. Dinosaurs were not the only victims of this 'mass extinction. ' There were many other species that we...
Causes Of Extinction
601 wordsTheories of the Extinctions of the Dionsaurs: Dinosaurs became extincted 65 million years ago, at the end of the Cretaceous period, something so devastating that it altered the course of life on earth. It seems like it happened so sudden, as geologic time goes, that almost all the dinosaurs living on earth disappeared. So how did these dominant creatures just die off? Was it a slow extinction, or did it happen all of the sudden? These questions bring rise to many different beliefs on how the din...
Fossils Of Unhatched Dinosaur Eggs
761 wordsDinosaurs Dinosaur is the name of large extinct reptiles of the Mesozoic Era, during which they were the dominant land animals on Earth. The term was proposed as a formal zoologic name in 1842 by the British anatomist Sir Richard Owen, in reference to large fossil bones unearthed in southern England. The various kinds of dinosaurs are classified in two formal categories, the ordersSaurischia and Ornithischian, within the subclass Archosauria. The first recorded dinosaur remains found consisted o...
Possible For The Extinction Of The Dinosaurs
1,645 wordsThe first question that must be posed when trying to crack the mystery of the mass extinction is to ask, throughout history were there any other occurences of this magnitude The answer is a resounding yes. Altogether over time there has been about eight mass extinctions to large land dwelling vertebrates. The most recent was about ten thousand years ago, killing most of the giant mammals like mammoths, mastodons, super-large camels, saber-toothed tigers, and others (Bakker 428). The second quest...
Extinction Of The Dinosaurs And Other Species
1,144 wordsWHERE DID THEY GO BY JOHN J. HATFIELD EARTH SCIENCE LAB 2234 TERM 2 INTRODUCTION 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 (supernovas etc. )....
Extinction Of Dinosaurs
459 wordsWhen I grow up, I want to be a Paleontologist. After graduating from F.L.I.C. S I want to go to Casstech High school in Detroit and graduate with honors. After graduating form Casstech I want to study at The University of Michigan located in Ann Arbor Michigan. I want to study the life patterns and habits of Dinosaurs. After my studien g to be a paleontologist I would like to take a few classes in the egyptian lifestyle. I would like to learn more about the way they mummified people long ago. In...
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