The Cenozoic Era
The invertebrates that form the gray whales primary prey are restricted to shallow water environments, but global sea-level changes during the Pleistocene eliminated or reduced this critical habitat multiple times. Because the fossil record of gray whales is coincident with the onset of Northern Hemisphere glaciation, gray whales survived these massive changes by adapting their feeding habits. When continental glaciers locked up vast quantities of the earth 's water, ocean levels dropped up to 400 feet. This transformed what is now the sea bottom into wind-scoured steppes. At the height of the ice age, most of the modern gray whale food source would have been high and dry, and yet, the whales survived.
Between 100 and 600 C.E, the Roman Empire went through a number of political and cultural changes and continuities. Several changes were occurring such as the division and fall of Rome and the rise and spread of Christianity but one thing that continued was the idea of patriarchy and authority in the average Roman family. In the year 100 C.E, most of Europe was in a time of peace and prosperity but after 180 C.E, Rome started to decline due to ineffective leadership and outside invasions, ending the empire’s golden age. Germanic people spread plagues causing a decrease in population and also took the opportunity to attack Rome.
During this time the last Ice Age took place, making the earth’s climate colder than it is today. Glaciers covered many states and most of Western Canada, something us people alive today have never experienced or seen. This environmental climate caused multiple changes to the earth’s natural environment. Moisture over the world was turned to ice and the ocean levels dropped hundreds of feet. So much changed that a land bridge was formed, known as the Beringia.
The Permian-Triassic extinction The largest of the Big Five was the end-Permian or Permian-Triassic extinction event roughly 250 million years ago, which eliminated as much as 95 percent of the planet 's species. Before this extinction, marine animals were mostly filter feeders stuck in place on the seafloor, such as crinoids or "sea lilies. " Afterward, the seas became far more complex with mobile creatures such as snails, urchins and crabs.
During the Cambrian period, no life existed on land. The Cambrian period occurred 490 to 540 Mya. In the Cambrian at this point, no life, yet existed on land all of life had been rare. Very early in the Cambrian period the sea floor was covered by a mat of bacteria . Above was a thick layer of oxygen-free mud.
Ever since the emergence of mankind, humans have always prioritized their search for food and water. Even today the need for sustenance is still prominent; however, methods for producing it have evolved over time. The Paleolithic people went about scavenging, hunting, fishing, and gathering on their quest for food. The Neolithic Revolution marked a transition from such practices into the “cultivations of crops and the domestication of animals.” (Strayer, pg.12) Even after thousands of years, although techniques have changed, the basic concept of agricultural cultivation has still remained similar.
Around 500-600 million years ago a large continent formed by the merging of numerous continents, it was known as Pangaea. The forceful movement of the tectonic plates resulted in Pangaea being split into two smaller land masses. These two smaller land masses were identified as Gondwana and Laurasia. The splitting of Gondwana and Laurasia occurred around 230-280 million years ago. Gondwana or ‘Gondwanaland’ was a primeval supercontinent and was once the southern land mass of Pangaea.
Neandertals: A History Retold Myths and folklore have been perpetuated and handed down throughout time by our ancient ancestors and occurs quite commonly today. Usually, every time a tale is repeated it is altered and transformed into a slightly enhanced and more exaggerated form. There is a natural propensity of the brain that encourages humans to remember things that make a strong impression and to forget the less important details, all the while deifying or condemning, minimalizing or embellishing, and romanticizing or vilifying what was perceived. Unfortunately, these stories are not only pervasive in myth and folklore, but also have found their way in matters of fact such as scientific research. The Neandertal story has been shaped in this way for almost the last 150 years since their discovery.
Neolithic vs Paleolithic Introduction: The Neolithic and Paleolithic arrive from the stone age period they are two separate time period each sharing some aspects from the other and varying from each other. The Paleolithic is a prehistoric period of human history and stand for “old stone age. This time period cover most of its primary tools and and cave paintings. The Neolithic stand for “new stone age” the develop more in craft/technology and basic aspect of live. They can be compare and contrast in various ways but it was the Paleolithic the paved the way for the neolithic era.
The Paleo Indian Era began over 10,000-15,000 years ago. Paleo Indians were believed to have migrated to the United States from Asia, via Beringia (mow the Bering Strait) These migrant settlers were believed to be hunter gathers’. Upon their settlement, these tribes, acquired different languages, beliefs and over a thousand years late; would being the process of plant cultivation, allowing for their culture to evolve over the years. The Paleo Indians carried an assortment of tools to allow for hunting, skinning, and preparation of their kills.
The mammoths became extinct because of Climate Change, Human Hunting and Hyper Disease. Over the years global temperature has been increasing democratically, therefore climate change is one of the causes of mammoth’s extinction. Mammoths are large woolly animals that lived in cold climate. According to the Illinois state museum the temperature of the earth
Similarities and differences between the time periods of 600 BCE-600 CE and 1900-Present can be traced using drinks such as wine and Coca-Cola. These similarities and differences can be found in the development and transformation of social structures, and through the development and interaction of cultures. It is important to understand the interplay between past and present civilizations. Tom Standage’s “A History of the World in 6 Glasses” can be used to find evidence that supports these claims.
The Pleistocene Age is regularly characterized as the time period that started around 1.8 million years back and kept going until around 11,700 years prior. The latest Ice Age happened then, as icy masses secured enormous parts of the planet Earth. There have been no less than five reported significant ice agesduring the 4.6 billion years since the Earth was framed — and no doubt numerous more before people went ahead the scene around 2.3 million years prior. The Pleistocene Age is the first in which Homo sapiens advanced, and before the end of the age people could be found in about all aspects of the planet. The Pleistocene Age was the principal age in the Quaternary Period and the 6th in the Cenozoic Time.
Every year hundreds of species are diminishing due to the global temperature increase. From
Just to add a bit more about the Cenozoic era. The Cenozoic era is split up into three periods: the Paleogene, Neogene, and Quatenery periods. Throughout these periods, the Cenozoic is divided into seven epochs (subdivisions of the geologic timescale that are longer than an age and shorter than a period): Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, and Holocene. The Paleocene, Eocene and Oligocene epochs occur during the Paleogene period.
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