Word Theory Vs Evolutionary Theory

In today’s society, many people have good educational background however the usage of words sometimes did not match up to an individual’s knowledge. This can be seen using the word theory, especially in evolutionary theory. People usually refer to a theory as a guess and fact as the truth. However, according to the National Academy of Science, a theory is “a plausible or scientifically acceptable, well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena and predict the characteristics of as yet unobserved phenomena.” On the other hand, a fact is “referring to a scientific explanation that has been tested and …show more content…
This shows how speciation occurred. The fossils records have few of the transitional form that shows the missing link between two species due to the nature of terrestrial environment. The example of this was the discovery of Tiktaalik which is the missing link between fish and amphibian. In his Your Inner Fish book, Neil Shubin wrote that when he brought the fossil of Tiktaalik to his son’s preschool class, and asked the children what the creature was. He got some five years old children arguing, “No, no, it isn’t a crocodile, it is a fish, because it has scales and fins. Yet another child shouted, “Maybe it is both (Shubin, 25).” Tiktaalik fossil is clear to whoever see it because as Shubin noted in his book even five years old children knew this creature is the link between fish and …show more content…
Greener mentioned in his article that creationists argued that the eye is too complex and cannot evolve. He used the eyes of octopus and trout as an example because both have altered lens composition eyes. Through convergent evolution the camera eyes work well for these organisms. The author further wrote, “ The ancestor of the octopus and trout were selected for because these changes to their eyes conferred increased fitness to the organism-they were better able to see, escape predators, and find food…no design was required, only the natural selection of a series of advantageous mutations (Greener).” The gain of the camera eyes allowed the octopus and trout to navigate their way around better but their eyes are not necessarily the best. There is no designer because life is not perfect. Even with advance eyes like human’s eyes and octopus’ eyes there are disadvantages. Olsen wrote that eyes of human and eyes of octopus independently evolved. He added that an octopus has no blind spots but they can only see in black and white due to the lack of cones in its eyes. In contrast, we see color within the visible spectrum (400nm-700nm) but we have blind spots. This example shows how natural selection presents advantageous and disadvantageous to organisms, which have nothing to do with a designer, because eyes of octopus have more advantageous in saltwater due to a cup-like eyes and a vitreous