Monday, September 3, 2012
Evolutionary Explanation
I have always been intrigued with ancestral traits being passed down to us by past generations and also been overwhelmed on how some are lost along the way. According to the book evolutionary explanation one of the main comments of why we are who we are. I have always though "goose bumps" were a normal thing we all happen to get when we are cold or frighten. But this trait was actually passed down by mammals that used this technique to look intimidating. In my own personal opinion, this might be true but does not have any substantial evidence to prove that it is 100% accurate. And this is were i make by point on how some traits have be lost. Although, we do carry some genetic traits that make us who we are, i believe there is a line of traits that have been lost along the way of this ever changing world. Everyday we adapting to new circumstances and environments, I think that there is a good chance the some of the traits that we are "so called" to carry have been diminished making them disappear from our line of genetics completely, making it useless to us. Therefore, if they are useless, why do we still have them? It seems meaningless to me to carry traits in our genes that have to benefit to our lives what so ever, it interesting to wonder when will the line of certain useless traits ever stop. This video is pretty interesting to see how traits get passed down by natural selection. http://www.youtube.com/watch?v=lAQzQqbC1Vo
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As mentioned in the video "things that are beneficial will spread through populations very quickly." I like the idea of this quote because I agree with it since things that are proven to help us in one way or another have been passed down to generations and will continue to do so because of the role they are playing in humanity. Like you, I wonder why useless traits still carry on and are passed down with no apparent purpose. Still, many of the traits that we have inherited help us in the long run. We can better understand this idea of course by reviewing the evolutionary explanation.
ReplyDeleteDo you guys really believe that we have useless traits? If a human body is said to work like a "machine" and has many sub-machines within it that work together to allow the human body function the way it does, i feel like the body wouldn't waste its time to produce traits or genes that has no purpose. I think that due to natural selection, some traits become less useful over time and we might even lose those traits all together. Or vise versa, some traits that weren't as necessary at one point became more prominent over time. The video was interesting! I thought that it was cool that she discovered a way to manage or see what traits are surviving due to competition by natural selection.
ReplyDeleteI find evolution to be interesting as well. My favorite picture has always been the monkey turning into a human. I saw your video, it is a pretty interesting job; it would truly help a lot of people and prevent people from having to suffer their whole life.
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