I started this blog while I was a PhD student, as a way to get more practice presenting my science, and to aid my own understanding.

I have since completed by PhD and work as a Research Fellow, mainly on Drosophila. I now use this blog to post things that interest me, and to post information and pictures about  Drosophila that may be interesting and/or useful to science students.



All pictures and articles on this blog are my own work, unless otherwise stated. If you wish to use my images for any purpose, please contact me: arrogantscientist@googlemail.com




  1. Hello,

    My name is Josh. You posted a comment on my thesis the other day.

    I greatly appreciate your desire to share your research with the masses; I heartily agree with your assertion that, “you only know if you really know something when you try and explain it to someone else.” Sadly, science has become so specialized and compartmentalized that lay persons—as even scientists from different fields—do not reap the benefits of the vast majority of work done in labs.

    I also appreciate your statements about faith. You made the comment that you would never hold to a blind faith or, “[faith] that something is correct or present without evidence.” This type of “blind faith” is both foolish and dangerous. As a Christian, I am often dismayed when other Christians speak about blind faith—as if this were the type of faith the Bible teaches us to have.

    I appreciate that you took the time to read my paper; however, I wish you could give me better feedback. It’s obvious to me that you disagree with my thesis and find my arguments weak. If you have the time, I would love for you to elaborate on this.

    Thanks again for your comment and keep up the good work in the lab!

    Most Sincerely,

    J. Matthan Brown

  2. Dear “Arrogant” Scientist,

    Thanks for your explanation on balancer chromosomes.

    In addition, I feel there is a certain inconsistency in the paragraph below:

    “and the thing I hate the most – FAITH. As a scientist I never have “FAITH” in anything – I have the best view I can based on the available evidence, but never faith that something is correct or present without evidence. And then I will test that view, no matter who’s opinions it goes against, even my own. Essentially, I BELIEVE (with the WEIGHT OF THE WHOLE OF SCIENCE BEHIND ME) that a scientific philosophy is the only really fulfilling way to live, and understand, your life.” (emphasis added)

    I am not a native English speaker (I am Hungarian) but I feel that if you believe something about scientific philosophy (i.e. that it is the only really fulfilling way to live etc.), it is a kind of faith. Not the mention that in the “whole science” you respect a world of opinions only assumed (by you) to be correct.

    I am interested in your opinion, of course.

    Kind regards,


  3. Hi Adam,

    You raise a good point about the meaning of “belief” and “faith”. The problem with them is they are pretty much synonyms. You could use either one in a sentence and it would not change the meaning of the sentence.

    However, above I have used them to mean different things, and perhaps I should have been clearer, as they can mean different things to different people, as well as meaning exactly the same thing to other people.

    When I say belief, I mean any idea held by someone, without judging the quality of the idea. For example, the idea that the world is round and the idea that the world is flat are both beliefs.

    I consider faith as a subset of belief, defined as an unreasonable belief. I.e. believe without evidence, or despite the evidence. For example, I would consider someone’s belief that the earth is flat as faith.

    As for “faith” in science, I do have faith in science, because I cannot possibly verify all results in every discipline myself. I have to trust that other scientists are doing proper science, which is not always the case. However, I know that the philosophy of science works. It is objective and the results are reproducible. I have applied it myself.

    However, this is not equal to, for example, “faith” in a god. The leap of faith that science is correct is a tiny one to make, since all the evidence shows that science works. If it turned out that it didn’t work thanks to some amazing piece of evidence, I would have to change my belief. Conversely, faith in god is a massive leap of faith, to the point where belief is unreansoable. There is no real evidence, and any contrary evidence would only serve to strengthen the faith.

    In summary, someone needs to invent a grading scale, with reasonable belief at one end, and faith at the other, as the definitions of “faith” and “belief” are not fixed 😛

    – AS

  4. http://www.youtube.com/watch?v=V0W7Jbc_Vhw is relevant here.

  5. hey, thank you for the great deal of explaination. I am doin MS in genetics and i need to face this fly everyday… 😉 i am very thankful to u for posting your work and helping me out with my doubts…


  6. هيئة المهندسين التجمعيين – corps des ingenieurs du parti du RNI

    This is my expert

  7. this artical was very practical and informing thanks

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