![]() The rise of the horses embodies the “survival of the fittest” phrase, since along this lineage there were some branches that ran dead due, the story of horse evolution is one of constant adaptation and radiation in response to changes in North Americas climate. When the whole idea for common descent was proposed, Darwin had no genetics understanding, but today we see when scientist compare genomes of different species they fumed similarity in the numbers of chromosomes and their location, with fossil evidence they were also able to find similarities amongst different species bone structure and their assemblages.Ī typical example of descent from a common ancestor is horse evolution, no evolution of any other species is as well documented as the horse lineage, this is due to an abundance of fossils found throughout North America from over 50 million years ago, this allows us to reconstruct much of the horse family tree. It is a known fact that each species that live today is as a result of evolution of pre-existing species throughout their lineage, if follow the ancestry of two modern day species at one point they're will be intersection with the two lineage on the family tree of life, indicative of a common ancestor, therefore all organisms today are all descendants of species that no longer exists and the closer the species are from their common descendant the more related they are. This builds the scientist's reputation and gives a wide audience, making it easier for other scientists in their field to be easily accessed and refer to their findings while doing similar researches, such as researches on descent from common ancestors. Some journals go through something called peer reviewing, this is when your article becomes published after other scientists have reviewed and deem it to be of good standard and quality. The main outlet that scientists use to communicate their results is through publishing it in journals, they are placed in archive, so it can be read and referenced in the future. They may present these findings at conferences where a group of their peers can listen to the presentations, at universities or through journals and popular media. Scientists need to communicate their latest findings and inform their colleagues and the public of new data. Parsimony is used more specifically in taxonomy to produce the least number of groups in phylogenetic trees, to avoid over group. In the case of multiple hypothesis, the law of parsimony is a general guideline applied, it suggests that we look for the simplest, clearer hypothesis, with empirical evidentiary support first, in order remove the unnecessary assumptions. In the case of the law of Parsimony, Occam’s Razor states that “entities should not be multiplied beyond necessity”, therefore in science we should not make assumptions of things that are surplus to requirement. However, a hypothesis is an observable, proposed idea or explanation. However, this differs from how we normally think of a theory because a theory is basically formed from a hypothesis attempting to relate facts to each other on the grounds of speculation. Scientific theory is an observed and tested phenomenon, governed by a set of rules, facts and well sustainable explanation.
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