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Evolution By Natural Selection Essay

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Evolution by natural selection is one of the best sustained theory's in the history of science, supported by evidence from a wide variety of scientific disciplines, including palaeontology, geology, genities and developmental biology
Origin of whales: In the first edition of the origin species In 1859, Charles Darwin speculated about how natural selection could cause a land mammal to turn into a whale, as a hypothetical examples, Darwin used North American black bears which where known to catch insects by swimming in the water with there mouths open.
The idea didn’t go very well with the public. Darwin was so embarrassed by the ridicule he received that the swimming bear passage was removed from later editions of the book.
Scientists now know that Darwin had the right idea but the wrong animal: instead of looking at the bears he should have instead been looking at the cows and hippopotamuses
The story of the origin of whales is one of the evolutions most fascinating tales and one of the best examples scientists have of natural selection
With the advent of modern biotechnology, researches have been able to determine the actual sequence of the roughly 3 billion bases of DNA that make up the human genome. They have similarities in the DNA sequences of creatures that are supposedly related …show more content…

When contrasting DNA arrangements between creature taxa, developmental researchers frequently hand select the qualities that are generally shared and more comparative, while giving less regard for classes of DNA succession that are different. One consequence of this approach is that contrasting the more preserved groupings enables the researchers to incorporate more creature taxa in their examination, giving a more extensive date set so they can propose a bigger transformative

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Over the eras, many scientists have expressed concerns with Darwin's evolution theory and in "Was Darwin Wrong?" by David Quammen one can learn about the proof behind the theory of evolution. Many people do not believe in evolution due to an overall unawareness about the theory and religious upbringing. However, Quammen clarifies the truth behind evolution in his article. The article states five positions of evidence biogeography, embryology, morphology, paleontology, and the bacterial resistance to antibiotics discovered in humans.

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In addition, scientists use the homologous structure as evidence for evolution by using structures with different appearances and functions that derived from the same body parts in a common ancestor. Furthermore, natural selection is evidence for evolution because for example, when Darwin collected birds they were a closely related group of distinct species, but the different beak shapes were related to food gathering. Artificial selection is another piece of evidence for evolution in which operates by favoring individuals with certain phenotypic traits allowing them to reproduce and pass their genes to the next generation. Overall many biologists accepted Darwin’s theories but there are some objections such as how evolution is not demonstrated, no fossil intermediates, the intelligent design argument, evolution violating the second law of thermodynamics, proteins are too improbable, the irreducible complexity argument, and how natural selection does not imply

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Evolution is supported by the fossil record, and how scientists can see similarities in DNA. To see how organisms are related,scientists can see that they have homologous structures and scientists can look in the fossil record and see common ancestors. When scientists look into the fossil record, they can see how organisms may have evolved. They look further back and see common ancestors. scientists can look at DNA and see how things are similar in other organisms, they can see that things may have had common ancestors and evolved from the same thing.

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In summary, comparative anatomy sheds information on the evolutionary history of animals by showing similarities and contrasts in their anatomical features. The similarities between whale and land animal bones highlight the notion of common ancestry and natural selection. Embryology, the second line of evidence in evolutionary biology, investigates organisms' developmental processes prior to their birth or hatching. Scientists can discover patterns of resemblance in species' embryonic development, providing clues on their evolutionary ties and shared heritage. In the video, the embryological development of dolphins, humans, and whales is highlighted as particularly illustrative.

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The scriptures reveal in Genesis from the Old Testament and in Moses from the Pearl of Great Price that God created the earth and the inhabitants such that they were to live upon this new world the He had created. My studies of evolution do not contradict these truths, rather validate the brilliance of God who created this perfect plan. In Moses 2:21 it says, “And I, God, created great whales, and every living creature that moveth, which the waters brought forth abundantly.” This parallels the diagram presented in Understanding Evolution; section “The history of life: looking at the patterns” page 1, where it shows the beginning of evolution from the waters starting with sharks to other species such as primates, rabbits to birds.

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More than that, the more closely related species are, the more similar their DNA make-up is. For example, the human and chimpanzee DNA make-up is much more a similar than that of a Blue Whale and a Golden Eagle. Now of course, relatedness can still not be proved here and an inference is required to establish that DNA similarities are the result of common descent and evolution. So, the question really is, how big of an inference is this? Without looking at other pieces of evidence, this is clearly a big inference.

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Darwin's theory of natural selection is the most scientifically supported form of evolution. This is supported by a variety of evidence

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This chapter was about how natural selection can be change the world. Darwin decides to open with, “But the mere existence of individual variability and of some few well-marked varieties, though necessary as the foundation for the work, helps us but little in understanding how species arise in nature,” (60,Darwin). Darwin has shown that each living species has a job or can help make this world a better place. Darwin has had ideas on how each species originated on earth. We are know that animals and humans are able to reproduce more of itself, which allows its traits to be passed on.

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Nonetheless, there are pieces of evidence that supports his theory as a whole, including transitional fossils, which connects gaps from one species to the next in the large “tree of life.” Darwin’s Theory of Evolution by natural selection “explains both the unity and diversity of life on Earth, how all organisms share a common ancestor, and how species adapt to various habitats and ways of life” (Mader 262). Many of Darwin’s conclusions are supported by new findings, such as the finches he found in the Galapagos Islands and how they adapted to the lifestyle of the tropical climate. Some finches had larger beaks to crush seeds, while others had smaller beaks to pick up seeds from the ground. Another supportive finding was the transitional fossil

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