Pros And Cons Of Agnostids

Faith and Surovell hypothesize a statistical analysis will uncover whether a temporally spread out extinction or a quick extinction killed North America’s Pleistocene mammals, a debate that has split paleontologists and archaeologists into two diametrically opposed sides for years. (Faith and Surovell, 2009). The debate on the extinction method has been heated due to the absence of fossil records of 19 of the 35 genera (Faith and Surovell, 2009). Faith and Surovell test whether finding only 16 genera in the fossil record in the terminal timeframe (between 12,000 and 10,000 radiocarbon years ago or between about 11,800 - 9,400 B.C.) is a result of a sampling error, or an extinction happening over a long period of time (Faith and Surovell, 2009).

In his response to an article regarding the co-existence of Homo Habilis and Homo Erectus, German theologist, Dr. Manfred E. Kober, criticizes the credibility of evolutionary theories. His points, however, relating to the evidence that dinosaurs and early humans co-existed, are heavily biased and many factors such as; his credentials, lack of sources, his use of inaccurate information and statistics, the date of publication and the media platform utilized, greatly decrease the reliability of his response.

Double pieces that have lasted over thousands of ages to offer scholars with references to human existence during the Paleolithic period are the Woman of Willendorf figure and the Lion Man of Hohlenstein-Stadel. Each figure is condensed with amazing features, even though they are not thorough to the level of realism. The Woman of Willendorf is one of the best instances of the small ‘Venuses’ that have been uncovered meaning that her persistence was a part of a ethnic set of views about women and fertility. The Lion Man, is a more exclusive artifact that recounts to the complex figures that are recognized from other cultures within which the related mythologies that have been revealed. The Lion Man has no known mythology that is obtainable in known written history to this day. The two pieces propose the unknown about the Paleolithic era, recognizing a sagacity of religion and rituals that were part of the lives of those who lived during that era and enlightening recent scholars on some aspects of the people during that time.

This organism causes the sharks to go blind. Luckily Greenland sharks are mainly scaevngers and heavily rely on their heighted sense of smell.

As the book progresses, we are introduced to the three most influential people on western biological thought that emerged from ancient Greece, and the classical world. First came Socrates (470 – 399 B.C.) who was revered as the “moral philosopher” rather than a “natural philosopher,” as his ideas contributed towards two jurisdictions of thought – philosophy and natural science. Although he left little proof of his written accounts, his ideology has made it through centuries of history in the form of “Socratic dialogues” by his pupil, Plato (429 – 347 B.C.). Plato contributed to the transcription, of the dialogues between himself and Socrates and the members of Athenian

If the history of ancient civilizations are ever told, they are told in a few paragraphs or a page or two of a history textbook. They are considered natives that lived in harmony with nature and that not many even existed so they must not be of importance. But now, we have books that challenge the way people normally would think of these civilizations. One book is called 1491: New Revelations of the Americas Before Columbus by Charles C. Mann. He challenges these ideas, but not just saying them, but by actually showing the reader evidence he, himself, has found. In order to challenge these ideas, we can analyze the origins, demography, and ecology of ancient times to realize there was life before

Between the scientists and the environmentalists, the theories continue. Let’s face it; no one or no thing will live forever. Big animals eat little animals; little animals eat bugs and plants. The Indians were noted to be a “super-predator” disrupting the normal ecosystem and ultimately causing the extinction of the megafauna. There is no concrete evidence to support this theory yet

The argument the author puts forth is that horseshoe crabs have evolved over the eras. That they’re not “living fossils”. Horseshoe crabs have “rounded cephalic shields, that were like the extinct trilobites, and an arrangement of legs and gills”, no wonder people think they are living fossils. This is the beginning to how these historic animals have evolved.

correct since no fossils evidence has been found in this region. Furthermore, the professor states

First, the author states that agnostids may have been predators and tries to justify this theory by mentioning that other types of primitive arthropods existed that were active predators and furthermore since there were plenty of smaller organisms in the ancient ocean, they might have been a great source of nutrition for agnostids. However, the lecturer challenges this point by explaining that predators usually have large, well developed eyes while

In modern popular culture, Dunkleosteus is by far the best known and most often represented of the early placoderm carnivores. However Dunkleosteus actually sat within the Dinichthys genus for a long time as the species Dinichthys terrelli. It was not until the large numbers of Dinichthys remains were re-studied that it was realised that a large number of the Dinichthys fossils actually represented different genera, not species. The result was that many of these remains were split to form new genera including the creation of Dunkleosteus. In a further twist however, the species that was split to form Dunkleosteus, D. terrelli, was actually the remains most often used when reconstructing Dinichthys.

The Bunostegos have knobbly growths on their skull and are the largest recognizable reptiles ever seen in the Pareiasaur group, which are plant eating creatures. The Bunostegos traveled a remote desert approximately 260 million years ago. The unusual reptile belongs to the Pareiasaur group, they thrived during the Permian period. The cow sized creature has been named Bunostegos, which means “Knobby roof”. Researchers supports the idea that there was a remote desert in the middle of Pangea with unusual animals. It is possible that the bony knobs on the skull of Pareiasaurs did not serve as a protective function, but were purely ornamental. The knobbly growths remarkably vary in size and shape between different species. The long period of isolation

First, the reading states that the agnostids may have been free-swimming predators that hunted smaller animals. The professor opposes this point by saying that hunting preys needs well developed eyes to attract preys. On the other hand, the professor states that the agnostids had poorly eye vision and some of them were blind. Furthermore, there is no evidence that proves that agnositids had special sensory organs that could help them

The passage article mainly discusses the theory that why dinosaurs may be endotherms which mean that they can keep a constant temperature higher than their environment. The reading passage cites some proofs for this theory but the lecturer clearly casts doubts on this assertion.

This chapter Lovelock was explaining the history of the development of the Gaia theory. It began in September of 1965 when he read a non-significant paper than no one paid attention to. This was at a time when “New Age” fads were in so many scientists discredited the Gaian theory as just part of the New Age movement and not as real science. A few years later in 1970, Lovelock met with Lynn Margulies who fought the battle for endosymbiont hypothesis that states that all life originated from microorganisms. This meeting led Lovelock to come into contact with many of the scientists who later disagreed with the Gaian theory. Scientists such as Kasting, Hayes, and Walker believed that the regulation of the Earth needed no explanation by the Gaian