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Showing posts from November, 2020

November 12- Common Descent

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 Something I found confusing/ need more information on.  I understand that sexual selection and natural selection are two different things. One has to do with survival and the other has to do with reproduction. But, do they eventually bleed into each other? What I mean is, if the male has the right colors and this makes the female want to mate with him over some other male with dull feathers doesn't this eventually give him a better chance at survival? Not only for himself but for his offspring? Because his offspring will most likely also have the kind of feathers females want. And they will continue to mate and so on and so forth.  Something I thought was cool and interesting I thought it was interesting that Darwin was also the one to put sexual selection on the map with his 1859 book. For many of us, he is only known for his natural selection proposition. But, turns out it was him, it was just not as acknowledged because it was a more disputed and controversial topic. ...

November 2- Speciation

 3 Questions Regarding Speciation: 1. One thing from an earlier video was that, a far off ancestor can tell if something is related to them and then will choose not to mate. HOW??? That just seems incredibly hard. 2. I get the technical differences between natural selection and sexual selection. But then again, they kind of blur into each other. What is the determining factor between them? 3. Many times, do species just try to interbreed and then do not have a successful outcome?