Use+of+Special+Analysis+to+Test+Hypothesis+on+the+Origin+of+Pinnipedis

 **Use of Special Analysis to test Hypothesis on the Origin of Pinnipedis. January 1995** When I looked up the topic that Mr. Sowash gave us the first animal that I thought of were walruses. They have been my favorite animal since I was a little child. So I was very interested to learn more about them. I found out from this website that walruses along with the other species that are categorized with them which are seals and sea lions, scientists have not specified their origin. Along with most scientists they have to provide a hypothesis for their thought. One of the main reasons why they are uncertain about this is because in reality walruses are also classified as being in the category with otters and ferrets. Walruses mostly live in water but otters and ferrets live in water but also on land. Other main reason why scientists are very confused about the origin of walruses is because their DNA is very different than all of the other species in the category. Because of this fact scientists have observed and discovered this new way of determining what kind of DNA walruses have. They have made and performed an experiment to determine that fact. The way they have figured that out is that they have reconstructed the DNA from previous walruses and the difference to today’s walruses. They are calling this experiment Hendy and Penny. There is one problem with the contents of this experiment. Some of the errors are sampling errors, unequal lineage rates, not equal change of the rates at the various sites, and wrong tree selection criteria. In an attempt to correct these errors that have performed additional transformations of the observed patterns. They are still working on this theory and hopefully soon it will be cleared up.