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  • Feb

    13



    Charles Robert Darwin

    Charles Robert Darwin was born 199 years ago on 12th of February 1809 and his theory aired publicly 149 years ago.
    Darwin’s idea that all species of life have evolved from one or a few common ancestors via natural selection was accepted by the scientific community and common people during his lifetime itself, yet in 1930’s his theory of natural selection became primary explanation of process of evolution and now it is the basis of modern evolutionary theory as it is the foundation of biology providing a unifying rational and logical explanation for the diversity of life. Yet, opposition to science and evolution theory is nothing new and the creationists and fundamentalists keep opposing Darwinism and evolution theory at large. I have seen some theistic creationists claiming that “Evolution is just like the fable of the frog prince. Instead of the literal magic wand (to change the frog into the prince) evolutionists believe in the magic wand of ‘billions of years “
    The thing is, these people even do not understand the evolution theory nor do they want to.
    And why Darwinism alone, in fact many fundamentalists still opposes Galileo’s concept of heliocentric solar system. There are still numerous fundamentalists Christians that believe he is wrong, or even more dramatic, believe space doesn’t exist all-together. We must first decide if rationality and logic are the keys to understanding the “Truth,” and if so we must then accept that some people will choose to remain blind to the “Truth”.
    It is a fact that reasons are the only available tools to see the reality; however that is not something that one and all are in agreement upon. Many take their religion, faith, tradition, and/or relationship with their god as their means to “Truth”… It’s those people that scientists are determined to encounter with this Darwin issue… And for the most part they will ignore the scientific arguments in favor of their own ideas. Yet, there is nothing problem if they keep their ideas to themselves. The problems occurs when they starts forcing their ideas dogmatically on others.
    This has been going on for millennia. It is a fact that Darwinism and modern evolution theory is not fully proved yet, micro-evolution has been proven, even some level of macro-evolution is proved, but it leaves some area open such as the development from on species into entirely different species).However, unlike religionists and creationists, evolutionists offers proof, with theories based on observed interactions and realistic view points. Of course there are gaps left, as there are in many field-nothing is absolute and everything is contestable, thus is the nature of human knowledge, however it is reasonable to understand that human will find an answer eventually. Maybe not in our lifetime, or the next, but many things take time, and questions of existence and the meaning of life will no-doubt take more than just about anything else.

    The science of Neo-Darwinism is not contentious; neither the theory nor the evidence. The implications of the hypothesis upset some religious groups who simply do not understand the scientific method, or choose to misunderstand it.
    Even some creationists questions that why human are not evolving further.
    As a matter of fact, it is just wrong to suggest that human are not evolving. We are evolving further although it may not be visible by normal eyes. Yet, evolution is fastest in current scenario which is driven by driven by exponential population growth and cultural shifts.

    According to evolution, the species culture which grows slow are at disadvantage, while human have observed massive growth and the cultural and regional shifts has caused far more genetic mutations. Many of the new genetic adjustments are occurring around changes in the human diet brought on by the advent of agriculture, and resistance to epidemic diseases that became major killers after the growth of human civilizations.
    As the anthropologist John Hawks says “We are more different genetically from people living 5,000 years ago than they were different from Neanderthals.”

    Yet the studies of LD (linkage disequilibrium) suggests that there’s a strong record of skeletal changes that clearly show people became physically smaller, and their brains and teeth are also smaller. This is generally seen as a sign of relaxed selection — that size and strength are no longer a key to survival. Genetic changes are now being driven by major changes in human culture. In stead of changing or mutating on structure basis, now at least 7% of human genes have been registered as changed on natural selection causing Linkage Disequilibrium which is an evidence of positive selection and adaptation which is leading to disease resistance. As for example epidemic diseases such as malaria, smallpox and cholera began to dramatically shift mortality patterns in people. Malaria is one of the clearest examples, yet human evolved against it, there are now more than two dozen identified genetic adaptations that relate to malaria resistance, including an entirely new blood type known as the Duffy blood type.

    Another recently discovered gene is CCR5 which originated about 4000 years ago. It was discovered recently because of its HIV/AIDS resistance abilities, yet it was adapted in human to resist the pathway of smallpox.
    Darwin wrote in “Origin of the Species” about the challenges in animal breeding, he emphasized that herd size “is of the highest importance for success” because large population have more genetic variation, and human population is observing same genetic variations hence promoting positive selection and causing evolution at much faster rate than what it was some 5,000 years ago around the time of stone age.
    It is so obvious that Magic and miracles doesn’t occur and we do not need any miracle too, because nature itself is miraculous!
    ~~~~paying a tribute to science, rationality and reality on 199th birthday of Charles Robert Darwin.

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    10 Responses to “Theory of Evolution and Natural Selection—150th year”

    1. Sankz Says:

      Kewl blog man.
      Really informative.
      Also chk out mine at:

      http://freakytheories.blogspot.com

    2. viraj Says:

      tht post was quite informative. keep posting :)

    3. S Ramanathan Says:

      Spot on! informative and perfect post! nice tribute…! keep wrting!

    4. ana Says:

      achei tosco.

      beijos.
      te cuida.

      bhufguhgfj

    5. Kenneth Says:

      nice work….

    6. Kenneth Says:

      nice work…

    7. Nishi Says:

      erm.. its kinda long and thus uninviting.. but i really liked the content and the way you write..

    8. Proneat Says:

      gud gud. can b short ..

    9. nirbhay Says:

      hi……..
      This is Nirbhay…….
      Nice…….
      i like it very much……
      well i was agnostic…but i turned to Atheism with the help from Darwin and Dawkins….
      Nice to meet u !
      Bye……..

    10. Allytude Says:

      I was not trying to state that atheists oppose celebrations. Rahter reacting to the specific post I had linked to my blog. I was brough up very secularly . So no religion ntered any fesstivals I celebrated.And transplaning to another culture has not really impacted my celebrations either. I completely agree with the celebration of Darwin, also Newton (do read the NYTimes piece- on celebrating the days of Newton) Its just about being happy. That is all. Religion or lack of it are a personal matter- unless hey get too in your face.

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