Homologous / Analogous Traits

Homology 

Gorillas and Humans 

The two different species that I have chosen are the gorillas and human tailbones. Also often referred to "vestigial." Humans are homosepians and gorillas are apes, but one thing that they have in common is the structure of the tailbone. Humans does not have a tail, but since the tailbone is the last vestige, it remains where the tail should be if there was one. Along evolution the tail structure has changed and evolve for humans, no longer looking like a tail, but as an extra bone. The ancestor who we shared this bone structure with is the Great Ape. 

Analogy 

Birds and Insects 

For this section I chose birds and insects wings. To be more specific I will be discussing the wings for butterflies. Birds are vertebras with warm blood; they have feathers and bones in their wings. Butterflies on the other hand are nectar feeding insects, they have a small body and really broad wings that contain a set of membranes which are filled with fluid. This two species do not share a common ancestor. The only thing they both have in common is that they both use their wings to fly. 

Protein Synthesis

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Natural Selection? Natural Selection.

One of the person's who influenced Darwin's Natural Selection theory was Alfred Russel Wallace. Just like Darwin, Wallace was working on his own theory about natural selection. Wallace sent his theory to Darwin in 1858, which came to Darwin as a surprise since it was very similar to his own, theory he had been developing since 1830. Both of their theories were published, although it was not well received at the time. Later own when their theory got recognized, it was Darwin the one to be more accredited for his theory. Nonetheless, Darwin and Wallace made a huge contribution to our understanding of the natural world. Wallace provided new information and evidence using warning colouration in animals as examples of natural selection, creating his own natural selection theory. Theory that was call The Wallace Effect. It occurs when natural selection favors reproductive isolation between two diverging populations, eventually creating two separate species x . Both Wallace and Darwin were committed to science, but their conceptions of science were dramatically different: for Wallace science was simply the search for truth in the natural world; for Darwin science must invoke only natural processes functioning via unbroken natural laws in non-teleological ways. Wallace’s view of science was unencumbered by philosophical assumptions whereas Darwin’s science was pigeonholed by the philosophical presumption known as methodological naturalism (or methodological materialism) x. 

With the knowledge and the different point of view that Darwin received from Wallace; he was able to follow and focus on his other processes, one that explained the evolution of particular characteristics such as the traits that were pass down during the evolution, but Wallace didn't seem to agree with this idea. Darwin didn't let this stop him, instead he focused one creating yet another important theory called sexual selection. Sexual selection focused on the evolution of many traits. One that related to one of the mechanism of natural selection, "In order for traits for natural selection to occur reproduction MUST occur!"

Many people might share the opinion that Darwin could of done his theory without the influence of the men who influenced him. But, more than influenced him, I think they inspired him to keep going and staying focus on his work. If he would of done it with no influence at all, his theory might not be the same since his ideas went back and forth often, having someone that shared similar ideas on natural selection helping to finish his master piece. With Wallace's help he finally formulated his now famous Natural Selection theory. 

When On the Origin of Species came out, one of the first people to turn it down was the church. They didn't agree with evolution based on the fact that, it was not the way human existence was explained in the bible. Darwin's theory for them was not real because for them the human existence was a creation by God and not by the product of science. The church made Darwin's revolutionary idea be seem as blasphemy. Opinion that didn't really seem to change throughout the years. Now Christians are free to choose whether they believe in the theory of evolution or not.