The Truth about Species!

Page 1

The Truth about Species! - Part 1 (Why Sex) http://nature-sucks.blogspot.com/2010/10/truth-about-species.html

December 4, 2010

Today I will show how easy is to understand species without complex theories, in a simples and natural way. The only way! My first point it's about the meaning of the word species. Species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. This means that you can't apply this concept to all forms of life, in other words, some forms of life can't bee classified as species in this way. The best example of this are the Prokaryotes. Surely they can be morphological classified, but not as species. Secondly, you can't understand a specie without understand sexual reproduction. Today, sexual reproduction means processes that pass a combination of genetic material to offspring, resulting in increased genetic diversity. But this may be a wrong definition, because the evolution of sexual reproduction continues to be a major puzzle. However this is a wrong definition, because this is in fact a very simple puzzle as I will show next. The placed pieces of the classic view do not solve the puzzle, because they are wrongly positioned in the next way: 1. Speciation (all organisms); 2. Sexual selection (some species) Those pieces need to bee changed, like this: 1. Speciation (some organisms); 2. Sexual selection (all species). For any classic evolutionist this sounds stupid, but I can explain it; you need to think in species as an end by itself, this means that Prokaryotes have no species like mammals laid no eggs! Speciation it's an acquired skill, it's so simple that is annoying how people don't see it! Now you can complete the puzzle in a extremely trivial way, knowing that sex it's the mechanism that support speciation like the mammal womb discard the need of eggs! For the question, why sexual reproduction? You may simple answer, because it's the mechanism of speciation. In this moment some may ask, but aren't there asexual species? We should never forget that we are first of all working with words and their meaning. Words are some times very miss leading and more subject to opinions than facts. For a child, a tree it's an asexual organism, like for some grownups, because for them trees


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